Procedia food science最新文献

{"title":"Address the Public Health and Food Security Concerns of Babesiosis Through Molecular Detection of Babesia Bovis in Suspected Carrier Cattle of Selected Localities in Sri Lanka","authors":"R. Kirupananthan ,&nbsp;L.C.J. Kamaral ,&nbsp;G.H. Galhena ,&nbsp;K.L.N. Perera ,&nbsp;M.P.S. Magamage","doi":"10.1016/j.profoo.2016.02.053","DOIUrl":"10.1016/j.profoo.2016.02.053","url":null,"abstract":"<div><p>Emergence of babesiosis in both public health and food security concern in global perspectives cannot be ignored. The dairy farming plays an important role in food industry that, fulfilling the protein requirement through producing both milk and meat. The farming operations may get hampered due to non-infectious and infectious diseases. Infectious diseases also cause huge production losses in all farming operations in time to time. Babesiosis becomes a major concern in public health and animal production specialists in recent years both locally and internationally due to severity of out breaks, carrier animals and zoonotic nature. Babesiosis as an emerging zoonotic disease and also causing heavy production losses due to the both clinical diseases and carrier animals. Babesia parasites, mainly <em>Babesia bovis</em> and <em>B. bigemina</em>, are tick-borne hemoparasites inducing bovine babesiosis in cattle globally. Babesiosis is known to occur in tropical and subtropical regions of the world and it is one of the major constraints to the livestock industry which adversely affects economic return and food security by reducing milk, meat production and if not treated leads to the death of the animal. Babesia parasites are considered to be endemic in central Sri Lanka and the prevalence of babesiosis is high in other areas. Carrier cattle infected with babesiosis have low number of parasites in circulation. Babesiosis is difficult to detect and is a challenge to conventional diagnostic methods. However, diagnosis of carrier animals in herd is important for preventing outbreaks by transmission through vector ticks to healthy animals and for obtaining epidemiological data of the disease. Here, we have conducted nested PCR detection of <em>Babesia bovis</em> in carrier cattle (Jersey crosses, Friesian crosses and Australian milking zebu) of selected localities of Sri Lanka. For this study, 30 blood samples were collected from suspected carrier cattle and analyzed using light microscopy and nested PCR. Screening by light microscope indicated that 47% of the samples to be positive. PCR analysis of samples diagnosed 80% as positive. Hence, 33% of the animals appeared to be healthy through routine light microscope diagnosis were in fact carriers posing a threat for the healthy herd population. The high prevalence of babesiosis in carrier cattle in Sri Lanka emphasized that island-wide control and prevention programs against bovine babesiosis are needed to minimize the financial burden caused by the parasites to reduce to production losses. This preliminary study on molecular detection of <em>Babesia bovis</em> in selected localities offers a rapid and efficient screening method for suspected carrier herds while providing new avenues to minimize losers incurred in milk production due to unidentified carrier animals.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"6 ","pages":"Pages 213-219"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88433537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of Agricultural Practices on Water Quality in Uma Oya Catchment Area in Sri Lanka","authors":"W.D.T.M. Gunawardhana,&nbsp;J.M.C.K. Jayawardhana,&nbsp;E.P.N. Udayakumara","doi":"10.1016/j.profoo.2016.02.068","DOIUrl":"10.1016/j.profoo.2016.02.068","url":null,"abstract":"<div><p>Sustainability of global food production is highly depending on the quality of the environment. In many parts of the world increase of agricultural production heavily depend on intensive agricultural practices which are having negative impact on the environment. The impacts of agricultural practices on surface water quality is given special attention currently since the safe and ample supply of freshwater is fundamental to humans and for the sustainability of ecosystem function. Intensive agricultural practices in river catchments often pose threat to the ecological integrity of river ecosystems. Uma Oya watershed in the upper Mahaweli watershed in Sri Lanka is an intensively cultivated landscape. In most parts of the catchment previously forested lands have been cleared and converted to agricultural lands. However, the empirical evidence on quantitative assessment of such land use conversion impacts on stream ecological health is lacking in the context of river catchments in Sri Lanka. Therefore the present study was aimed at evaluating the agricultural land use impacts on stream physical habitat quality, water quality and macroinvertebrate indices in the Uma Oya catchment at different spatial scales. The relationship between catchment and site scale % agricultural lands, water quality and macroinvertebrate indices were evaluated using univariate and multivariate approaches. The results indicated that stream physical habitat quality, water quality parameters and macroinvertebrate indices are significantly (p&lt;0.05) affected by catchment scale % agricultural land cover. Among the water quality variables that were tested NO₂-N, NH₃-N, PO₄-P and BOD₅ level in sites with higher percentage of agricultural land cover exceeded the drinking water quality standards during dry season. PO₄-P and BOD₅ level in those sites exceeded the proposed ambient water quality standards for inland waters in Sri Lanka for aquatic life and for irrigation purposes. Findings of the present study suggest that catchment scale interventions are crucial for the management of Uma Oya watershed and for the improvement of water quality and sustainable agricultural production.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"6 ","pages":"Pages 339-343"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77766807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimation of the Temperature Dependent Growth Parameters of Lactobacillus Viridescens in Culture Medium with Two-step Modelling and Optimal Experimental Design Approaches","authors":"Daniel Angelo Longhi ,&nbsp;Wiaslan Figueiredo Martins ,&nbsp;Nathália Buss da Silva ,&nbsp;Bruno Augusto Mattar Carciofi ,&nbsp;Gláucia Maria Falcão de Aragão ,&nbsp;João Borges Laurindo","doi":"10.1016/j.profoo.2016.02.079","DOIUrl":"10.1016/j.profoo.2016.02.079","url":null,"abstract":"<div><p>In predictive microbiology, the model parameters has been estimated using the traditional two-step modeling approach (TS), in which primary models are fitted to the microbial growth data and secondary models represent the dependence of model parameters with environmental variables. The optimal experimental design approach (OED) has been used as an alternative to TS, mainly because the improvement of model identifiability and reduction of the experimental workload and costs. The fitting of mathematical model to experimental data in TS is sequential, whereas in OED is simultaneous. <em>Lactobacillus viridescens</em> is a lactic acid bacteria that is of great interest to the meat products preservation. The objective of this study was to estimate the growth parameters of <em>L. viridescens</em> in culture medium with TS and OED. For TS, the experimental data were obtained in six temperatures; for OED, the data were obtained in four optimal non-isothermal experiments, two experiments with increasing temperatures (ITOED) and two with decreasing temperatures (DTOED). The Baranyi and Roberts, and the Square Root models were used to describe the microbial growth, in which the <em>b</em> and <em>T</em>_<em>min</em> parameters (± 95% confidence intervals) were estimated from the experimental data. The parameters obtained for TS were <em>b</em> = 0.0290 (±0.0020) h^-0.5°C^-1 and <em>T</em>_<em>min</em> = -1.33 (±1.26) °C, with <em>R</em>^<em>2</em> = 0.991; for ITOED were <em>b</em> = 0.0314 (±0.0019) h^-0.5°C^-1 and <em>T</em>_<em>min</em> = 0.12 (±0.71) °C, with <em>R</em>^<em>2</em> = 0.995; for DTOED were <em>b</em> = 0.0295 (±0.0019) h^-0.5°C^-1 and <em>T</em>_<em>min</em> = -1.57 (±1.05) °C, with <em>R</em>^<em>2</em> = 0.999. The parameters obtained in the OED approach presented smaller confidence intervals, higher <em>R</em>^<em>2</em> and less experimental time than the parameters obtained in the traditional TS approach. In this way, it is possible to answer positively that OED approach is feasible and could be widely applied in predictive microbiology.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"7 ","pages":"Pages 25-28"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76318102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Study on Thyroid Status among Newborns in Jaffna District in Sri Lanka","authors":"T. Yoganathan ,&nbsp;V. Arasaratnam ,&nbsp;M. Hettiarachchi ,&nbsp;C. Liyanage","doi":"10.1016/j.profoo.2016.02.051","DOIUrl":"10.1016/j.profoo.2016.02.051","url":null,"abstract":"<div><p>Iodine is an essential nutrient for the production of thyroid hormones triiodothyronine (T₃) and thyroxine (T₄). A woman needs more iodine during pregnancy to maintain normal metabolism as well as to meet the requirements of T₄ and iodide transfer to the fetus. Objective of this study was to assess the thyroid status among newborns in Jaffna District, because similar studies conducted nationally, but not in Jaffna and no data is available about the thyroid status of the neonates. Randomly selected 477 newborns in six Medical Officers of Health (MOH) Divisions out of twelve were studied.Blood spots were taken from the neonates within the one week of delivery on specified filter paper and thyroid stimulating hormone (TSH) was assayed by using enzyme-linked immunosorbent assay(ELISA)/Radioimmunoassay (RIA) technique depending on availability of the kits in the laboratory. Among the total newborns, 239 were males (50.5%). Mean birth weight (BW) of them was 3031.5(±432.6) g, while the mean length was 51.1 (±2.1) cm. BW of males ranged from 1.7 to 5.0 Kg and of females from 1.5 to 4.35 Kg. Length of the newborns ranged from 45.0 to 58.0<!--> <!-->cm for males and from 44.0 to 57.0<!--> <!-->cm for females. The low birth weight (LBW), normal birth weight (NBW) and higher birth weight (HBW) were 11.3 (<em>n</em>=54), 88.5 (<em>n</em>=422) and 0.2% (<em>n=</em>1) respectively. Mean neonatal blood spot TSH concentration was 9.8 (±2.1) mIU/L, and ranged from 1.00 to 53.46 mIU/L. Neonatal TSH level of the entire blood spot was categorized as &gt; 20 mIU/L and &lt; 20 mIU/L and the blood spot TSH &gt; 20 mIU/L was considered as positive for congenital hypothyroidism. Among the newborns, 18% (<em>n=</em>86) of them were identified as positive with 10% males and 8% females. Only one newborn was diagnosed as being congenitally hypothyroid (serum TSH &gt;9.8 mIU/L and free T₄&lt; 10<!--> <!-->pmol/L) with very high blood spot TSH value of 360.91 mIU/L. Further, a higher prevalence (37.7%) of neonates with blood spot TSH &gt;5 mIU/Lwas observed in this study.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"6 ","pages":"Pages 271-274"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.051","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77632550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Systems Level Approach for Identification of Molecular Targets for Antimicrobial Intervention against Pseudomonas Aeruginosa, while Predicting Biofilm Formation","authors":"Yvan Le Marc,&nbsp;Alejandro Amézquita","doi":"10.1016/j.profoo.2016.02.100","DOIUrl":"10.1016/j.profoo.2016.02.100","url":null,"abstract":"<div><p>In this case study, we aimed at evaluating the suitability of genome-scale metabolic models to identify molecular targets that can potentially enhance antimicrobial effects of chemical preservatives against <em>P. aeruginosa</em>, while minimizing biofilm formation. For the case study, isothiazolinones were selected as a group of microbicides where their mechanism of action is well described in scientific literature. Target identification was carried out in several steps. First, we developed a computational model of <em>P. aeruginosa</em> metabolism under action of isothiazolinones. Action of sub-inhibitory concentrations of isothiazolinones was simulated based on extensive information on their mechanisms of action. Then, simulations of single and double gene deletion(s) were performed <em>in silico</em> to identify genes or combinations of genes that could be targeted to induce further reduction of bacterial growth rate. Finally, we assessed whether total or partial inhibition of these genes might activate biofilm formation.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"7 ","pages":"Pages 113-116"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.100","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82341310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Use of Web Technology by Government of Sri Lanka to Ensure Food Security for its Citizens","authors":"P.C. Abeysiriwardana ,&nbsp;S.R. Kodituwakku","doi":"10.1016/j.profoo.2016.02.018","DOIUrl":"10.1016/j.profoo.2016.02.018","url":null,"abstract":"<div><p>Web technology is one of the key areas in information and communication technology to be used as a powerful tool in ensuring food security which is one of the main issues in Sri Lanka. Web technology involves in communicating and sharing resources in network of computers all over the world. Main focus of food security is to ensure that all people have fair access to sufficient and quality food without endangering the future supply of the same food. In this context, web sites play a vital and major role in achieving food security in Sri Lanka. In this case study, websites pertaining to Sri Lankan government and link with food security were analyzed to find out their impact in achieving the goals of food security using web technologies and how they are being involved in ensuring food security in Sri Lanka. The other objective of this study is to make the Sri Lankan government aware of present situation of those websites in addressing food security related issues and how modern web technologies could be effectively and efficiently used to address those issues. So, the relevant websites were checked against several criteria and scores were used to assess their capabilities to address the concerns of food security. It was found that the amount of emphasis given by these websites to address the issues of food security is not satisfactory. Further, it showed that if these web sites could be improved further, they would generate a powerful impact on ensuring food security in Sri Lanka.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"6 ","pages":"Pages 82-91"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86935180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a Method for Manufacturing Noodles from Finger Millet","authors":"B.D.M.P.B. Dissanayake,&nbsp;H.S. Jayawardena","doi":"10.1016/j.profoo.2016.02.058","DOIUrl":"10.1016/j.profoo.2016.02.058","url":null,"abstract":"<div><p>Available methods of preparing foods from finger millet at home are laborious, time consuming, and people are reluctant to prepare foods from finger millet even though finger millet is a nutritionally important food item. Also, there are hardly any food items prepared from finger millet in the market, and less attention has been given to finger millet. As a solution for this problem, a study was carried out to develop a medium scale method for manufacturing of noodles from finger millet with maximum substitution, and tests were conducted by using a process line used to manufacture rice noodles with modifications. Based on the results of the preliminary experiments, main tests were carried out with blending ratios of finger millet to rice flour percentages of 50:50 and 100:0 with three replicates. Flours were mixed with water to increase the moisture content up to 35% and pellets were formed. Paste prepared by steaming the pellets was extruded to make sheets, and they were sent to an extruder to form noodles. Formed noodles were sterilized at 100⁰C, cut to 4 inches length pieces and sent to a dryer. Temperature of drying air was maintained about 40-45⁰C. It was found that the moisture content and percentage total solids in gruel of both types of produced noodles were satisfied the maximum allowable level for rice noodles i.e.12% and 8% according to SLS 858. Sensory evaluation results revealed that both types of noodles produced with finger millet were highly acceptable and 100% finger millet noodles were shown a higher acceptability in colour than 50% finger millet noodles. Developed finger millet noodles packed in PET/LDPE bags can be stored more than 1.5 years without any deterioration of quality. Hence, the developed method can be used to manufacture 100% finger millet noodles commercially on a medium scale level. Cost of production is 250 SLR per kg.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"6 ","pages":"Pages 293-297"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85205231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of Insecticide Incorporated Bags against Major Insect Pests of Stored Paddy in Sri Lanka","authors":"W.M.C.B. Wasala,&nbsp;C.A.K. Dissanayake,&nbsp;C.R. Gunawardhane,&nbsp;R.M.N.A. Wijewardhane,&nbsp;D.M.C.C. Gunathilake,&nbsp;B.M.K.S. Thilakarathne","doi":"10.1016/j.profoo.2016.02.040","DOIUrl":"10.1016/j.profoo.2016.02.040","url":null,"abstract":"<div><p>A study was conducted to evaluate the efficacy of an insecticide (deltamethrin) incorporated bags (Zerofly®) against the insect attacks during paddy storage under Sri Lankan conditions. The study was conducted at Institute of Post Harvest Technology (IPHT), Anuradhapura andat the warehouse of Paddy Marketing Board (PMB), Anuradhapura. Paddy sample in Zerofly® sacks were stacked at both locations and for controls, untreated polysack bags were used. Paddy samples that were collected before storage and at monthly intervals during the storage period were analysed for moisture content, weight loss due to insect damages, Thousand Grain Mass (TGM), germination percentage, Total Milling Yield (TMY) and Head Rice Yield (HRY). Data was analyzed using Analysis of Variance (ANOVA) by Statistical Analysis System (SAS). The moisture content of paddy grains fluctuated between 13.3 – 14.3% during storage period but any significant difference was not observed among bag types. The level of insect damages in control was increased with storage time while the initial level of insect damage of treated bags remained unchanged. The mass loss due to insect damagesof grains was significantly higher (p=0.05) in untreated bags than treated bags. The insect damage was reduced by 3.5-4.a% using Zerofly® bags during paddy storage. In addition, dead insect bodies were found onouter surface of the insecticide incorporated bags but no live or dead insects were found on untreated bag surface during storage. Mainly rice weevil (<em>Sitophils oryza</em>) and lesser grain borer (<em>Rhysoperthadominica</em>) were found in paddy samples of untreated bags and number of insects increased with time. The germination percentage of grains in untreated bags was significantly higher than to thecontrol. It was reduced from 93% to 60-64% and 93% to 82-83% in control and treated bags respectively. During the six months of storage, TGM did not show any significant difference (p=0.05) among different treatments. TMY and HRY resulted significantly (p=0.05) lower values of paddy stored in untreated bags than Zerofly® bags. Use of insecticide incorporated bags can reduce the loss of TMY and HRY of paddy during storage. The study revealed that insecticide treated bags are an appropriate packaging material to protect stored paddy from insect infestations under Sri Lankan conditions.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"6 ","pages":"Pages 164-169"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88470044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of 1-Methylcyclopropene on Postharvest Life of Sessile Joyweed (Alternanthera Sessilis)","authors":"R.P.S.S. Rajapakse ,&nbsp;C.K. Beneragama","doi":"10.1016/j.profoo.2016.02.056","DOIUrl":"10.1016/j.profoo.2016.02.056","url":null,"abstract":"<div><p>Sessile Joyweed <em>(Alteranthera sessilis)</em> which is commonly known as <em>Mukunuvenna</em> in Sri Lanka, is the most widely produced and most popular of nine leafy vegetables cultivated and sold on a commercial scale in Sri Lanka. This is primarily consumed locally, while only a small quantity is exported. However, the shelf life of <em>Mukunuvenna</em> is as low about 3-4 days due to leaf yellowing and wilting. Consumers prefer green and turgid leafy vegetables and thus the loss is considerably high after wilting and yellowing. Ethylene is a critical problem in leaf senescence. Minute concentrations such as 1<!--> <!-->μL/L ethylene can affect leaf yellowing significantly. Thus, an ethylene blocker, 1-Methylcyclopropene (1-MCP), which is now commonly being used in the fruit industry, can be considered as an effective solution for extending the postharvest life of <em>A. sessilis.</em> It is not toxic and environmentally friendly thus safe with edible produce. The present study was done, with the objective of investigating effects of 1-MCP on postharvest life and sensory qualities. Two experiments were conducted for several dosages (concentration × time) to investigate the shelf-life performances and processed <em>A</em>. <em>sessilis</em> samples were used to check sensory qualities such as taste, smell, texture and colour.</p><p>Samples treated with 1-MCP showed high levels of chlorophyll, lower yellowing and higher overall quality. Postharvest life of treated samples increased by 1 full-day (25% increase) under the room temperature. 1-MCP, 5<!--> <!-->ppm for 8 hour duration showed promising results. However, the obtained results did not show a specific treatment combination as the best treatment and 1-MCP did not alter the sensory qualities of the processed product.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"6 ","pages":"Pages 283-287"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85870617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Manurial Effect of Wood Ash and Refuse Tea on Nutrient Status and Yield of Tea (Camellia Sinensis L.)","authors":"L.H.M.G. Gunathilaka ,&nbsp;G.P. Gunarathne ,&nbsp;L.P. Vidhana Arachchi","doi":"10.1016/j.profoo.2016.02.042","DOIUrl":"10.1016/j.profoo.2016.02.042","url":null,"abstract":"<div><p>A field experiment was carried out to determine the effects of wood ash and refuse tea with urea on yield and nutrient status of tea. Experimental plots were located in the St Coombs Estate, Tea Research Institute, Talawakelle, Sri Lanka. Six treatments (1 ton wood ash plus 20 ton refuse tea ha^-1 year^-1{T₁}, 2 ton wood ash plus 20 ton refuse tea ha^-1 year^-1{T₂}, 1 ton wood ash plus 20 ton refuse tea plus 587<!--> <!-->kg urea ha^-1 year^-1{T₃}, 2 ton wood ash plus 20 ton refuse tea plus 587<!--> <!-->kg urea ha^-1 year^-1{T₃}, present TRI fertilizer mixture{T₃}, and control{T₃}, without any fertilization) were arranged according to Randomized Complete Block Design with three replicates. Macro and micro nutrient contents in soil and leaf were analyzed5 months after applying treatments and yield was recorded in weekly intervals.T₂ applied plots indicated significant positive effect (p&lt;0.05) on the yield and significantly (p&lt;0.05) higher Potassium and Calcium content in the soil. Significant effect (p&lt;0.05) of Nitrogen and Carbon content in the soil was given by T₁. Electrical conductivity and pH changes in soil were not any significantly different among all the treatments whilst higher macro and micro-nutrient concentration was observed in the soil, treated with T₁,T₂,T₃and T₄. It is evident from results that wood ash, refuse tea with urea can be successfully used to promote sustainable tea cultivation in the Mattakelle soil series (Rhodudults/Tropudults;USDA classification) which having high buffering capacity.</p></div>","PeriodicalId":20478,"journal":{"name":"Procedia food science","volume":"6 ","pages":"Pages 261-266"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.profoo.2016.02.042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80877919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}