AIMS Agriculture and Food最新文献

{"title":"Agricultural expenditure and agricultural total factor productivity growth in South Africa","authors":"N. Ngepah, Regret Sunge","doi":"10.3934/agrfood.2023035","DOIUrl":"https://doi.org/10.3934/agrfood.2023035","url":null,"abstract":"The study investigates the impact of government agricultural expenditure on agricultural total factor productivity (TFP) growth in South Africa. South Africa subscribes to the African Union-inspired Comprehensive Africa Agriculture Development Programme (CAADP), established in 2003 to exterminate hunger and lessen absolute poverty. CAADP requires governments to allot at least 10% of government expenditure to agriculture and achieve an average 6% annual growth in agricultural GDP through doubling agricultural productivity. Despite launching CAADP in 2011, South Africa is off-track. Our analysis follows a two-step procedure using data for the period 1986 to 2018. Firstly, using input and output data, we estimate agricultural TFP indices using the growth accounting (GA) and the Malmquist-Data Envelopment Analysis (DEA) methods. Secondly, we use the Autoregressive Distributed Lag econometric technique to estimate the agricultural TFP impact of government expenditure. Estimates from the GA approach proved more reliable. We find that government agricultural expenditure has a significant positive effect on agricultural TFP growth of 4% and 18.5% in the short-run and long-run, suggesting high and increasing marginal gains. Estimations on weather variables reveal that a 1% increase in average temperatures and rainfall would increase TFP by 2.7% and 1.4% respectively. We recommend that South Africa fully implements the CAADP. Also, given significantly positive estimates of imports and exports, we call for increased agricultural trade liberalization biased towards export promotion and more intra-Africa agricultural trade within the AfCFTA framework.","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70183867","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}

{"title":"Effects of household-scale cooking on volatile compounds, sensory profile, and hypotensive effect of Kenikir (Cosmos caudatus)","authors":"Dody Dwi Handoko, Anisa Maharani Kaseh, Laras Cempaka, W. David, B. Kusbiantoro, Afifah Zahra Agista, Yusuke Ohsaki, H. Shirakawa, Ardiansyah","doi":"10.3934/agrfood.2023011","DOIUrl":"https://doi.org/10.3934/agrfood.2023011","url":null,"abstract":"Kenikir (Cosmos caudatus) can be used in the preparation of raw and cooked vegetables in some Indonesian dishes. The cooking process may affect the appearance, chemical properties, and flavor of kenikir. This study aims to determine the effect of household scale cooking on the volatile compounds, sensory profiles, and hypotensive activity of kenikir. Fresh kenikir samples and samples boiled or steamed at 100 ℃ (for 3 and 5 minutes) were analyzed for volatile compounds compositions (solid-phase microextraction-Gas chromatography-mass spectrometry, SPME-GCMS), sensory profiles by free choice profiling, and in-vivo study by using stroke-prone spontaneously hypertensive rats (SHRSP)—a model of spontaneous hypertension. The GCMS analysis identified 30 volatile compounds from 5 compound groups, namely alcohols (2 compounds), benzenes (3 compounds), esters (3 compounds), monoterpenes (10 compounds), and sesquiterpenes (12 compounds). Several compounds, namely (Z)-3-hexenol, α-cadinol, and 3-carene were only detected in fresh kenikir, whereas β-myrcene and β-elemene compounds were only identified after cooking. The principal component analysis of sensory attributes associated fresh kenikir with bright color and minty taste, steamed kenikir with floral aroma, and boiled kenikir with juicy, moist, tender, and smooth texture. Furthermore, a hypotensive effect was shown in the water extract of kenikir after 2 and 4 hours of single oral administration in SHRSP. In summary, the heating process (boiled and steamed) of kenikir has changed its volatile compound composition, which can affect its sensory profiles. In addition, the water extract of kenikir can diminish hypertension in SHRSP.","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70183645","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}

{"title":"Consumption &lt;i&gt;vs&lt;/i&gt;. non-consumption of plant-based beverages: A case study on factors influencing consumers' choices","authors":"Francesco Sottile, Stefano Massaglia, Valentina Maria Merlino, Cristiana Peano, Giulia Mastromonaco, Ferdinando Fornara, Danielle Borra, Oriana Mosca","doi":"10.3934/agrfood.2023047","DOIUrl":"https://doi.org/10.3934/agrfood.2023047","url":null,"abstract":"<abstract> <p>Plant-based beverages (PBBs) represent a growing global alternative to cow's milk. However, their development is strongly influenced by consumers' expectations of new foods introduced into the diet: environmental sustainability, balanced nutritional content, health aspects, and organoleptic properties. This study analyzes consumers' preferences and choice orientations towards plant-based beverages through the assessment of their eating style and concern towards environmental and health issues. To that end, an online questionnaire was conducted with a sample of 233 respondents living in the South-East area of Italy. Initially, principal component analyses were performed to identify distinct dimensions of individuals' orientation towards food quality, environment and health involvement. Then, the emerging dimensions were used as dependent variables for ANOVA comparisons between consumers and non-consumers of plant-based beverages, considering also individuals' preferences towards different PBBs. The main results showed a strong consumer concern for environmental sustainability issues, which was found as the main purchasing driver for plant-based beverage consumers. On the other hand, many respondents stated that they do not consume PBBs due to their negative organoleptic aspects and the unfamiliarity with these products. Furthermore, the individual's dietary style influences the consumption of plant-based beverages and, in particular, the search for nutritional and balanced compounds plays a key role in consumption choices. Finally, despite that the almonds cultivation for the traditional 'almond milk' production is typical in various Italian regions, consumers expressed averagely a weak connection with this product. In conclusion, considering our results, the market development of PPBs at a national level might be supported by marketing strategies dedicated to different individuals' profiles. At the same time, however, direct actions on the production process are needed to improve the organoleptic profile of these products and meet the dissatisfaction expressed by consumers.</p> </abstract>","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135749361","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}

{"title":"Growth and yield attributes of cowpea accessions grown under different soil amendments in a derived Savannah zone","authors":"Agatha Ifeoma Atugwu, Uchechukwu Paschal Chukwudi, Emmanuel Ikechukwu Eze, Maureen Ogonna Ugwu, Jacob Ikechukwu Enyi","doi":"10.3934/agrfood.2023049","DOIUrl":"https://doi.org/10.3934/agrfood.2023049","url":null,"abstract":"Malnutrition and severe food insecurity are on the rise in sub-Saharan Africa. Cowpea (Vigna unguiculata L.), an indigenous plant from Africa with a good nutritional composition, can be a strategic tool in the fight against hunger. Hence, the objective of this study was to assess the yield response of different cowpea accessions to soil amendments. The study adopted a 5 × 4 factorial in a randomized complete block design with three replications. The factors comprise five cowpea accessions (BBL, BBR, BCB, EBL and EBC) and four soil amendments (poultry manure [PoM], pig manure [PgM], NPK 15:15:15 fertilizer and control). There are significant differences among the cowpea accessions in all the studied attributes. The stability and mean performance analyses revealed that the top-ranked accessions were EBL and EBC, while BBL, BBR and BCB were below the population mean. The ranking order of the soil amendments was PoM > PgM > population mean > NPK > control. Accession EBL amended with PoM gave the highest plant weight (106.4 g), which was statistically similar to the same accessions amended with NPK (104.9 g) and PgM (100.4 g), but significantly higher than the other treatment combinations. Plant weight has a significant and positive correlation with pod length (r = 0.919**), number of leaves (0.623**), vine length (0.361**) and hundred seed weight (0.329*). The findings of this study showed that cowpea accessions responded differently to the soil amendments. This study recommends the use of additional nutrients as a supplement in the production of cowpea rather than relying solely on its self-fixed nitrogen.","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135839854","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}

{"title":"Multifunctional farm advisory services in promoting change in agricultural systems: The case of Campania region of Italy","authors":"Marcello De Rosa, Giuseppina Olivieri, Concetta Menna, Ferdinando Gandolfi, Teresa Del Giudice","doi":"10.3934/agrfood.2023051","DOIUrl":"https://doi.org/10.3934/agrfood.2023051","url":null,"abstract":"<abstract> <p>Entrepreneurial contexts may be marked by the presence of a 'cultural environment' that stimulates knowledge and innovation adoption, while other contexts may act as barriers toward change and innovation. Moreover, multiple paths of multifunctional agriculture bring about a call for \"multifunctional farm advisory services\" (MFAS), which consider both private and public goods provided by the farming sector. Set against the background of multiple roles of agriculture, how to identify sound and pertinent knowledge becomes of paramount, to specify the roles of agricultural extensionists and the mechanisms of governance of MFAS within the setting up of the Agricultural Knowledge and Innovation System (AKIS). Our aim of the study is either to analyze attitudes toward the privatization of extension services within a predominantly public system of regional governance and to identify advisors' profile and their suitability with the modern vision of multifunctional agriculture through the emergence of MFAS. Empirical analysis evidences the presence of a diversified set of advisory services with different degrees of coherence with the multifunctional agricultural model. Also, the more advisory services are oriented towards empowering multifunctional agriculture the less the propensity towards their privatization. The cluster analysis has demonstrated a relatively good advisor's capability to deal with the new demands of multifunctional agriculture. The idea of MFAS has important theoretical implications that the paper tries to excavate through the analysis of the mechanisms of governance (public/private) and the identification of the advisors' profile facing the growing complexity of the farming sector, grounded on multifunctional agriculture. The study tries to fill a gap in the literature, by providing an original contribution to modeling the profile of advisors in charge of supporting the transition towards multifunctionality.</p> </abstract>","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136258844","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}

{"title":"Understanding farmers' risk perception and attitude: A case study of rubber farming in West Kalimantan, Indonesia","authors":"Imelda, J. Mulyo, A. Suryantini, Masyhuri","doi":"10.3934/agrfood.2023009","DOIUrl":"https://doi.org/10.3934/agrfood.2023009","url":null,"abstract":"Indonesian rubber farming has the largest area in the world, but its implementation faces various risks that decrease productivity and farm income. This study is designed to specify the risk perception, risk attitude and determinant factors for smallholder rubber farmers. The research location was in four subdistricts in West Kalimantan Province, with a sample size of 200 farmers. Data collection was carried out by interview using a structured questionnaire. The risk matrix, Holt and Laury's method and the logit model were used to identify risk perception, risk attitude and determinant factors. The study results showed that most rubber farmers were risk-averse and perceived climate change, plant diseases and price change as high risks. The logit model found that farmers' age, education, rubber plantation size, rubber age, distance and use of rubber clones had a positive and significant effect on farmers' risk perception, while the family size and farming experience had a negative effect. Regarding risk attitude, the logit model found that rubber age, distance and risk perception of price change had a positive and significant effect on farmers' risk aversion, while farmers' age and use of rubber clones had a negative effect. This study recommends providing informal education to the farmers through training and counseling, encouraging the farmers to replant old or damaged rubber trees and adopt rubber clones. Furthermore, it is also necessary to improve road facilities and infrastructure, communication and transportation access to facilitate farming activities.","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70183578","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}

{"title":"Access to special COVID-19 relief from distress grant and livelihood outcome of livestock farming households in Eastern Cape Province, South Africa","authors":"S. Olawuyi, A. Mushunje","doi":"10.3934/agrfood.2023033","DOIUrl":"https://doi.org/10.3934/agrfood.2023033","url":null,"abstract":"Unexpected events and shocks constitute greater threats to the attainment of zero hunger targets in Africa and the world over, and in the extreme case, lead to total collapse of the global food system and food supply chain. Consequently, this causes significant loss of critical income sources, renders individuals vulnerable, and further deteriorates households' livelihood outcome and welfare state. Therefore, the need for social protection programs to mitigate the impact of distress and unexpected events, as well as extreme occurrences cannot be over emphasized. This research used dataset from the 1499 households captured in the 2021 South African General Household Survey to investigate whether access to a special relief from distress grant has effect on the livestock farming households' food security status in Eastern Cape Province of South Africa. Descriptive statistics, cross-tabulation, a two-sample t-test, a food insecurity experience-based scale technique, and a fractional outcome model were used to analyze the datasets. Based on access to the grant, households in the non-beneficiary group are significantly distinguishable from the beneficiary counterparts, such that the beneficiary households out-performed the non-beneficiary households in the food break-even and food surplus categories. The findings further indicated the possibility of transition of the beneficiary households' population under the transitory food insecurity category to either the chronic food insecurity status or food break-even status, subject to the effectiveness of the food security policy to which they are exposed. The fractional outcome model also indicated that non-metropolitan resident households (p < 0.05), access to the special grant (p < 0.01), access to health facilities (p < 0.01), age of households' heads (p < 0.01), colored, indian and white population groups (both at p < 0.01), as well as access to remittance (p < 0.01) made significant contributions to the households' food security status. The Wald test indicated that access to the special relief grant had a significant effect on the households' food security status in the study area. The study therefore recommends accelerated investments in various social investment programs as sustained responses to expected and unexpected shocks and occurrences to be able to induce progress and realize more resilient food systems.","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70183806","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}

{"title":"Do consumers care about environmentally sustainable attributes along the food supply chain? —A systematic literature review","authors":"Wei Yang, Bryan Anh, Phucan Le","doi":"10.3934/agrfood.2023027","DOIUrl":"https://doi.org/10.3934/agrfood.2023027","url":null,"abstract":"The agri-food market has shown a clear signal of \"green\" consumption that drives an increasing interest in studying consumers' willingness to pay (WTP) for food products with environmentally sustainable attributes, such as eco-friendly and carbon neutral. Whilst many existing studies have focused on a general idea of green attributes or on-farm practices that are regarded to be most relevant to the attributes, the agri-food industry has started to address consumers' concerns about the negative environmental impacts of agri-food production across the whole supply chain, including the processing, transportation, and consumption process. It is therefore the purpose of this study to conduct a systematic review of the existing literature on consumers' intentions of purchasing and WTP for food products with environmentally sustainable attributes, with a special interest in understanding the connections between consumer behaviours and different stages of the food supply chain. Results of the study revealed three main research gaps: the lack of clear definitions of environmentally sustainable attributes; ignorance of connections between the characteristics of environmentally sustainable attributes and different stages of the food supply chain; and lacking effective information processing among the key players along the supply chain, leading to inefficient communication between the supply and demand side. The findings of the study help form a conceptual framework for future studies to associate environmentally sustainable attributes to the whole food supply chain that helps the agri-food industry to effectively process market information, communicate with consumers, and satisfy the market demand.","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70183653","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}

{"title":"The enhancement of sappanwood extract drying with foaming agent under different temperature","authors":"F. D. Utari, Dessy Agustina Sari, L. Kurniasari, A. C. Kumoro, M. Djaeni, C. Hii","doi":"10.3934/agrfood.2023012","DOIUrl":"https://doi.org/10.3934/agrfood.2023012","url":null,"abstract":"Sappanwood (Caesalpinia sappan Linn) contains brazilin, a natural antioxidant. It can be extracted and dried to obtain a dry extract powder. However, sappanwood extract drying is difficult due to its tendency to form a jelly-like structure, which strongly traps water molecules. This research studies the effect of foaming agents (egg albumin and gum Arabic) as well as the drying temperatures (40, 60, and 80 ℃) on the drying kinetics and physicochemical properties of the sappanwood extract powder. The water removal can be well expressed by the Page model. The addition of a foaming agent as well as the increase in drying temperature significantly speed up the drying process. However, at a temperature of 80℃, the effect of the foaming agents was less significant, and the dry extract became dark brown due to the occurrence of the Maillard reaction. By considering those trade-off phenomena, optimization with response surface methodology (RSM) was performed. The results indicated that sappanwood extract could be fully dried using a mixture of 5% egg albumin and 25% gum Arabic as the foaming agent at 64.1 ℃, the in just 64.7 minutes or 7 times shorter compared to the drying without foaming agent. Under these drying conditions, the total phenolic compound retention was up to 87.25%.","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70183706","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}

{"title":"Isolation and &lt;i&gt;in vitro&lt;/i&gt; screening of plant growth promoting bacteria from rhizosphere and root tissues of potato tuber (&lt;i&gt;Solanum&lt;/i&gt; &lt;i&gt;tuberosum&lt;/i&gt; L.)","authors":"Johan Sukweenadhi, Eloqui Viectorica Wiranata, Ida Bagus Made Artadana, Kang-Se Chang","doi":"10.3934/agrfood.2023055","DOIUrl":"https://doi.org/10.3934/agrfood.2023055","url":null,"abstract":"<abstract> <p>The accumulation of chemical fertilizers that harm the environment is one of the major Indonesian agricultural problems. However, it still has less effect on potato production and yield. The discovery and use of bacteria that have the potential as plant growth-promoting agents (PGPR) is a breakthrough that can help to increase growth to increase production, especially in potato plants. In this study, several bacteria successfully isolated from the rhizosphere and root tissue of potato plants (<italic>Solanum tuberosum</italic> L.) were isolated from potato farms in Plaosan Village. Several in vitro screenings were carried out to assess the functional activity of plant growth promoters, including the IAA (indole-3-acetic acid) production test, siderophore production test, ACC (1-aminocyclopropane-1-carboxylate) deaminase production test and phosphate dissolution test. Based on the screening results, five isolates were considered as the best inoculants, there are R1.3, R2.2, JR2.1, E1.2 and E1.2.1. All R1.3, R2.2, E1.2 and E1.2.1 isolates were known to have the ability to produce phytohormones IAA, ACC deaminase, and siderophores. In contrast, JR2.1 isolate was not known to have the ability to fix nitrogen and produce IAA, ACC deaminase and siderophores. These isolates could be used as potential biofertilizer inoculants and provide a step towards sustainable agriculture.</p> </abstract>","PeriodicalId":44793,"journal":{"name":"AIMS Agriculture and Food","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135506234","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}