Research journal of chemical and environmental sciences最新文献_第8页

Bioethanol Production Using Starch Extracted from Microalga Stigeoclonium sp., Kutz. BUM11007 Cultivated in Domestic Wastewater 利用藻浆提取淀粉生产生物乙醇。在生活污水中培养的BUM11007

Research journal of chemical and environmental sciences Pub Date : 2015-05-01 DOI: 10.3923/RJES.2015.216.224

F. LewisOscar, R. Praveenkum, N. Thajuddin

{"title":"Bioethanol Production Using Starch Extracted from Microalga Stigeoclonium sp., Kutz. BUM11007 Cultivated in Domestic Wastewater","authors":"F. LewisOscar, R. Praveenkum, N. Thajuddin","doi":"10.3923/RJES.2015.216.224","DOIUrl":"https://doi.org/10.3923/RJES.2015.216.224","url":null,"abstract":"Microalgae are considered one of the viable feedstocks having potential to replace agricultural products for bioethanol production. The culture costs of microalgae remain the major hurdle in using them to produce bioethanol. This study focuses upon cultivation of a freshwater branched microalga Stigeoclonium sp., Kütz. BUM11007 in domestic wastewater and use the biomass for bioethanol production by Saccharomyces cerevisiae. Initially the microalga Stigeoclonium sp., was tested for their efficiency to remove the nutrients from different wastewater. When the organism was allowed to grow in wastewater they almost use all the available nutrients from the medium within 14 day. Among the various culture setups established, maximum growth (2.38±0.34 g LG1 dry cell weight) was observed from the setup composed of a wastewater (WW1) with 50% strength of Chu10 medium. The carbohydrates and starch contents of the cell were almost similar among the different culture setups. The algal biomass was harvested and tested for their usefulness in bioethanol production. The algal biomass was acid treated to dissolve the complex sugars. The sugar extract was used as the fermentation medium for bioethanol production with Saccharomyces cerevisiae. After 24 h of anaerobic fermentation, the yield was quantified as 0.195 g ethanol/g of microalgal biomass. The result proves the possibility of developing integrated process for bioethanol production with microalgal biomass cultivated from wastewater.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"15 1","pages":"216-224"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89707609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Effects of Amino Oxyacetic Acid (AOA) and Sucrose on the Longevity of Bougainvillea Flower Bract 氨基氧乙酸和蔗糖对三角梅苞片寿命的影响

Research journal of chemical and environmental sciences Pub Date : 2015-05-01 DOI: 10.3923/RJES.2015.206.215

A. Hossain

{"title":"Effects of Amino Oxyacetic Acid (AOA) and Sucrose on the Longevity of Bougainvillea Flower Bract","authors":"A. Hossain","doi":"10.3923/RJES.2015.206.215","DOIUrl":"https://doi.org/10.3923/RJES.2015.206.215","url":null,"abstract":"Bougainvillea is a popular ornamental plant in the tropics and sub-tropics of the world. It bursts forth with colorful flowers for the year round if it is planted in the adaptive climate. The ornamental importance of Bougainvillea bract is for the imparting and increasing color effect in the garden. Increasing plantation and beautification of bougainvillea have a scope in drier region and its use in vacant areas as road side plantation, beautification of traffic islands and wide road dividers for its own colorful environment. The study was carried out to investigate the effects of Amino Oxyacetic Acid (AOA) and sucrose on the vase life and senescence of bougainvillea bract. The treatments were used as water control, AOA and sucrose at different concentrations. The decreasing trend of fresh weight was found on the 3rd day and again increased on the 5th day in the case of all treated flowers. The lowest water uptake percentage was found in 4% sucrose and 50 ppm AOA concentration. However, senescence was delayed for 3 days in AOA 50 ppm and 4% sucrose concentration. The vase life of both AOA 50 ppm and 4% sucrose concentration treated-flowers were much longer (4 days) than control compared to the all concentration of sucrose and AOA. The results showed that the best treatment for vase life and delay senescence was AOA 50 ppm and 4% sucrose concentration.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"45 1","pages":"206-215"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73408028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Assessment of some Antinutrient Properties of the Watermelon (Citrullus lanatus) Rind and Seed 西瓜果皮和种子抗营养特性的评价

Research journal of chemical and environmental sciences Pub Date : 2015-05-01 DOI: 10.3923/RJES.2015.225.232

Anthony Cemaluk C. Egbuonu

{"title":"Assessment of some Antinutrient Properties of the Watermelon (Citrullus lanatus) Rind and Seed","authors":"Anthony Cemaluk C. Egbuonu","doi":"10.3923/RJES.2015.225.232","DOIUrl":"https://doi.org/10.3923/RJES.2015.225.232","url":null,"abstract":"Harnessing food wastes utilization in diets and drugs could improve food supply, health and the environment while antinutrients composition in a food provides an idea of the pharmacologic, dietary and toxic potentials of the food. Thus, this study assessed the antinutrient properties of the rind and seed of watermelon (Citrullus lanantus) which are usually discarded as food wastes in Nigeria, using standard protocols. The antinutrients (mg/100 g) in the rind and seed, respectively viz: saponin (3.0±0.03, 2.31±0.01), alkaloid (1.39±0.00, 0.36±1.03), tannins (1.33±0.01, 0.61±0.01), phenol (0.53±0.00, 0.12±0.01) and flavonoid (2.87±0.00, 2.03±0.02) were higher in the rind than in the seed. The content (mg/100 g) in the seed for cyanide (0.79±0.01), phytate (0.63±1.00) and oxalate (0.09±0.00) was higher than that in the rind for cyanide (0.00±0.00), phytate (0.46±0.00) and oxalate (0.08±0.01). The recorded difference in the antinutreints content in the rind and seed samples was not significant (p>0.05), hence negligible. The preponderance of these antinutrients in a comparatively lower amount in the samples suggests that the watermelon rind and seed may offer pharmacologic and dietary benefits at a possibly lower toxic risk. Thus, the study supports the use of watermelon rind and seed as food and/or as drug in ethnomedication. Further studies to harness and enhance the utilization of watermelon rind and seed in diets and drugs are required to reduce their attendant waste burden in the environment.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"6 1","pages":"225-232"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87403148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 33

Impact of Pesticide Use on Organophosphorus and Organochlorine Concentration in Water and Sediment of Rawa Pening Lake, Indonesia 农药使用对印尼拉瓦平湖水体和沉积物中有机磷和有机氯浓度的影响

Research journal of chemical and environmental sciences Pub Date : 2015-05-01 DOI: 10.3923/RJES.2015.233.240

slamet isworo isworo, I. Purwanto, A. Sabdono

{"title":"Impact of Pesticide Use on Organophosphorus and Organochlorine Concentration in Water and Sediment of Rawa Pening Lake, Indonesia","authors":"slamet isworo isworo, I. Purwanto, A. Sabdono","doi":"10.3923/RJES.2015.233.240","DOIUrl":"https://doi.org/10.3923/RJES.2015.233.240","url":null,"abstract":"Rawa Pening, a Lake in Central Java, Indonesia, serves as a source of power, irrigation and flood control and is used for fishing. Due to highly intensity agriculture activities surround the lake, it might be contaminated by pesticides. The aims of this study were to survey the pesticide usage and to detect pesticide concentrations on water and sediment of Rawa Pening Lake. A questioner observation was used to inventory the types of pesticides used. Gas chromatography equipped with Flame Photometric Detector (FID) detector was used to analyze selected pesticide concentrations of water and sediment samples. The findings survey showed that profenofos organophosphate are most commonly being used in the Rawa Pening Lake, followed by Carbamate, Deltamethrin, Imidachloprid, Fentoat, Carbosulfan, Carbofuran and Lamda Sihalotrin. No organochlorine pesticide was used by the farmers. Both pesticide residue levels of selected organophosphates and organochlorines in water ranged from Below Detection Limit (BDL) to 0.054±0.039 mg LG1 and Below Detection Limit (BDL) to 0.016±0.008 mg LG1, respectively. Whereas, the residue level of organophosphates detected in sediment samples ranged from Below Detection Limit (BDL) to 0.199±0.083 kgG1, while organochlorine ranged Below Detection Limit (BDL) to 0.067±0.032 mg kgG1. Profenofos was the highest detected pesticides and exceeded the prescribed standards. This study proved that the presence of organophosphorus contamination in the Rawa Pening Lake due to pesticide usage in Rawa Pening Lake areas. While, the banned organochlorine pesticide compounds were still detected in the lake because of possible usage of these chemicals illegally at the present or in the past.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"52 1","pages":"233-240"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89572324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Bioremoval of Zinc in Polluted Soil using Acalypha inferno 利用黑桫椤生物去除污染土壤中的锌

Research journal of chemical and environmental sciences Pub Date : 2015-05-01 DOI: 10.3923/RJES.2015.249.255

O. Abioye, O. Ekundayo, S. Aransiola

引用次数: 2

Influence of Seeding Rate and Reduced Doses of Super Gallant Herbicide on Weed Control, Yield and Component Yield of Mung Bean 播量和减投量对绿豆除草、产量和组成产量的影响

Research journal of chemical and environmental sciences Pub Date : 2015-05-01 DOI: 10.3923/RJES.2015.241.248

Abdolraheem Shakibapou, S. Saeedipour

{"title":"Influence of Seeding Rate and Reduced Doses of Super Gallant Herbicide on Weed Control, Yield and Component Yield of Mung Bean","authors":"Abdolraheem Shakibapou, S. Saeedipour","doi":"10.3923/RJES.2015.241.248","DOIUrl":"https://doi.org/10.3923/RJES.2015.241.248","url":null,"abstract":"Crop-weed competition has a profound effect on the seed yield of mung bean. We evaluated the effects of both the seed rate and weeding regime on the weed infestation and crop performance of mung bean. Two factors via seed rate (15, 25 or 35 kg haG1) and different doses of haloxyfop-R-methyl (0, 0.4, 0.8 and 1.2 L haG1) were included in the experiment. The experiment was implemented in a split-plot design accommodating seed rate in the main plot and doses of herbicide in the subplot with four replications. Mean data from the experiment showed that weed density and weed dry weight were significantly affected by seed rate: these two variables decreased with the increase in the seed rate (p<0.01). The seed rate significantly influenced plant height, number of pod per plant, biological yield and seed yield. Different variables that included: Plant height, number of pod per plant, 1000 seed weight, harvest index and seed yield were significantly influenced by variations of herbicide doses. Seed yield was significantly improved in dose of 1.2 L haG1. Overall, the interaction effect of seed rate and herbicide doses was not significant in respect to the plant characteristics except harvest index and seed yield. Nevertheless, a seed rate of 35 kg haG1, coupled with volume of 0.8 L haG1, illustrated the best seed yield. Therefore, crop competition can be explored as an effective alternative weed management strategy and achieving optimal yield of mung bean.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"41 1 1","pages":"241-248"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83200000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of Longevity of Allamanda Flower as Affected by Gibberellic Acid and Aluminium Salt 赤霉素酸和铝盐对扁桃花寿命发育的影响

Research journal of chemical and environmental sciences Pub Date : 2015-04-01 DOI: 10.3923/RJES.2015.178.185

A. Hossain

{"title":"Development of Longevity of Allamanda Flower as Affected by Gibberellic Acid and Aluminium Salt","authors":"A. Hossain","doi":"10.3923/RJES.2015.178.185","DOIUrl":"https://doi.org/10.3923/RJES.2015.178.185","url":null,"abstract":"Allamanda is an ornamental plant cultivated for their large, yellow and pink colorful flowers in the garden, office and home stead as well as in the occasional place. It makes attractive to the environmental beautification for its color and fragrant. The study was conducted with yellow type of Allamanda flower (Allamanda cathartica) to investigate the effects of gibberellic acid (GA3) and aluminium salt (aluminium sulfate) on the longevity (vase life and senescence) of the flower. Three types of treatments were used water control, gibberellin (GA3) 100 ppm and aluminium sulfate 150 ppm. Gibberellic acid (GA3) and aluminium sulfate were swabbed the bud twice a week for 2 weeks. The fresh weight was higher in the aluminium sulfate 150 ppm than gibberellin (GA3) 100 ppm and control. The decreasing trend of fresh weight was found in the case of all treated flowers. The lowest fresh weight loss was found in the aluminium sulfate 150 ppm then gibberellin (GA3) 100 ppm. Flowers treated with aluminum sulfate (8.19%) absorbed more water than those in GA3 and water control treated flower. Water uptake percentage was the highest in the aluminum sulfate treated flower followed by GA3 and water control treated flower. Senescence was delayed 5 days for aluminium sulfate 150 ppm and 1day for gibberellin (GA3) 100 ppm compared to control flower. Compare to control flower, the vase life of both aluminum and gibberellin treated-flowers were much longer (8.5 and 5.5 days) than control (4 days). The results showed that the best treatment for vase life and delay senescence was Aluminium sulphate 150 ppm and then gibberellin (GA3) 150 ppm.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"53 1","pages":"178-185"},"PeriodicalIF":0.0,"publicationDate":"2015-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73510572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Remediation of Iron Using Rhamnolipid-Surfactant Produced by Pseudomonas aeruginosa 铜绿假单胞菌产鼠李糖脂-表面活性剂对铁的修复作用

Research journal of chemical and environmental sciences Pub Date : 2015-04-01 DOI: 10.3923/RJES.2015.169.177

T. A. Akintunde, O. Abioye, S. Oyeleke, B. Boboye, U. Ijah

{"title":"Remediation of Iron Using Rhamnolipid-Surfactant Produced by Pseudomonas aeruginosa","authors":"T. A. Akintunde, O. Abioye, S. Oyeleke, B. Boboye, U. Ijah","doi":"10.3923/RJES.2015.169.177","DOIUrl":"https://doi.org/10.3923/RJES.2015.169.177","url":null,"abstract":"Pseudomonas aeruginosa was isolated from 20 years abandoned mine site of Itagunmodi Atakunmosa West, Ilesha, Nigeria. Atomic absorption Spectrophotometry (AAS) revealed Fe, Mn, Cr, Zn, Pb and Cr, while, Fe has the highest concentration range of 29-289 ppm in the analysed soil samples. Soil samples were enriched in R2b agar, serially diluted and pour plated. Four bacteria strains were isolated and identified using standard biochemical test. After routine biosurfactant screening by oil spreading and emulsification test, biosurfactant producing bacteria was confirmed as Pseudomonas aeruginosa. The partially purified biosurfactants were characterized with TLC and GC-MS analysis. The analyses indicated glycolipid biosurfactant specifically designated as Rhamnolipid-sa1 containing isopalmitic acid, hexadecanoic acid, methyl ester and hydroxylated fatty acid linked to decanoic acids. Iron removal potential of the extracted biosurfactant was studied and the result revealed that Rhamnolipid-sa1 effectively reduced iron (60.34%) and could be useful as alternative remediation tool for treatment of iron contaminated soil.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"57 9","pages":"169-177"},"PeriodicalIF":0.0,"publicationDate":"2015-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72464926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Assessment of Zinc Transport in Different Organs and Various Growth Stages of Soybean under the Influence of Zinc, Iron and Manganese Fertilization 锌、铁、锰施肥对大豆不同器官和不同生育期锌转运的影响

Research journal of chemical and environmental sciences Pub Date : 2015-04-01 DOI: 10.3923/RJES.2015.186.192

S. Kobraee, K. Shamsi

引用次数: 0

Biodiversity of Fungi from Lead Contaminated Industrial Waste Water and Tolerance of Lead Metal Ion by Dominant Fungi 铅污染工业废水中真菌的生物多样性及优势真菌对铅金属离子的耐受性

Research journal of chemical and environmental sciences Pub Date : 2015-04-01 DOI: 10.3923/RJES.2015.159.168

P. K. Mahish, K. L. Tiwari, S. K. Jadhav

{"title":"Biodiversity of Fungi from Lead Contaminated Industrial Waste Water and Tolerance of Lead Metal Ion by Dominant Fungi","authors":"P. K. Mahish, K. L. Tiwari, S. K. Jadhav","doi":"10.3923/RJES.2015.159.168","DOIUrl":"https://doi.org/10.3923/RJES.2015.159.168","url":null,"abstract":"Lead is important heavy metal found in different parts of the world and its high concentration releases in the environment due to anthropogenic activities. Industries are major sources of emission of lead in the environment. In present study, lead concentration was studied from coal based iron manufacturing industries, iron casting industry and petrochemical industry. The lead concentrations were studied from May, 2010 to April, 2011. All studied industries release lead concentration higher than the permissible limit of standard. Fungi were isolated from industrial effluent containing more than 1.0 mg LG1 of lead concentration. Dominant fungi isolated from high concentration of lead were further studied for tolerance against lead nitrate. Total 161 colonies of 37 species were isolated from industrial effluent in which genera of Aspergillus were found dominant. Maximum fungi were obtained from Columbia Petrochemical industry. Diversity of fungi is affected according to season and industries. Some fungi were found in all three season and also in high concentration of lead contaminated waste water. The dominant fungi were found tolerant against high concentration of lead nitrate. Hence, these fungi will utilize as biosorbent for absorption of lead from aqueous solution using ecofriendly method.","PeriodicalId":92133,"journal":{"name":"Research journal of chemical and environmental sciences","volume":"25 3 1","pages":"159-168"},"PeriodicalIF":0.0,"publicationDate":"2015-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77059816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9