Research@Lincoln
Research@Lincoln is an open access institutional repository collecting the research produced by Lincoln University staff and students. You may also be interested in Data@Lincoln or Lincoln University Living Heritage.
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Item Open Access Proximate composition, peptide characterization and bioactive properties of faba bean blanching water(Elsevier BV, 2025-01-01)Faba bean (Vicia faba L.) offers a rich nutritional profile with high protein content and abundant vitamins and minerals. Processing of faba beans for freezing requires blanching, yielding liluva (legume processing water), possibly containing leached macronutrients, with potential for upcycling. Past evidence has shown that legume processing water may be high in protein. Peptides generated from faba bean proteins during processing have been shown to have bioactivity and can, for example, inhibit HMG-CoA reductase. HMG-CoA reductase is rate-limiting in the biosynthesis of cholesterols and high cholesterol increases the risk of cardiovascular diseases. Thus, this study examined the composition of legume blanching water, analysed the peptides resulting from in vitro digestion and assayed HMG-CoA reductase inhibitory activity of liluva from faba beans sourced from two farms in Canterbury, New Zealand. Results showed that the blanching water contained around 1.7 g/100 mL solid content. These solids were approximately 30 % protein, 12 % water-soluble carbohydrates, 4 % dietary fibre, and 0.17 % ash. Mineral analysis showed high levels of potassium in macro minerals and zinc in trace minerals. Free amino acid analysis revealed high levels of arginine, alanine, asparagine, and glutamic acid, and low levels of methionine and tryptophan. Mass spectrometry analysis identified 111 and 72 endogenous peptides in farm 1 and 2 raw samples, respectively. Most of these peptides were derived from tripeptidyl-peptidase II and subtilisin-like protease. To understand potential bioactivity of these peptides, peptides were also analyzed after in vitro digestion. The resulting identified peptides indicated in silico predicted bioactivities such as anti-thrombotic, antioxidative, ACE dipeptidyl peptidase −III and −IV inhibition and HMG-CoA reductase inhibition activities. Further validation of the faba bean blanching water after in vitro digestion demonstrated approximately 67 % inhibition of HMG-CoA reductase activity, suggesting potential hypocholesterolemic properties. These findings suggest that faba bean blanching water may serve as a sustainable and functional ingredient with potential cholesterol-lowering effects in food production.Item Open Access Pesticide safety behavior among vegetable farmers in Bangladesh: Evaluating the role of market aggregation services(Elsevier Ltd., 2025-01-15)Pesticide use in Bangladesh is disproportionately high in vegetable farming compared to other crops like cereals, pulses, and cash crops. This study delves into the knowledge, attitudes, and practices regarding pesticide use among vegetable farmers, focusing on the impact of a digital aggregation service implemented by Digital Green. Based on interviews with 120 vegetable farmers in the LOOP aggregation scheme and 120 non-LOOP vegetable farmers this study indicates that the farmers using the aggregation service have a moderately higher level of food safety knowledge. LOOP farmers scored higher in pesticide safety knowledge (67.83 %) compared to non-LOOP farmers (55 %). Regarding pesticide safety attitudes, LOOP farmers scored 17.39 %, while non-LOOP farmers 4.17 %, reflecting a generally poor attitude toward pesticide application. Regarding practices, 65.55 % of LOOP farmers adhered to scientifically sound methods, compared to 43.10 % of non-LOOP farmers. Although participation in the LOOP program significantly influenced farmers’ pesticide-related knowledge, attitudes, and practices, this study still identifies the need for targeted interventions and training to improve food safety practices among both groups.Item Open Access Food safety knowledge, attitudes, and practices among vegetable handlers in Bangladesh(Elsevier Inc., 2025-01-02)This study delves into the Knowledge, Attitudes, and Practices of vegetable handlers in Jashore Sadar, Bangladesh, specifically focusing on the crucial significance of food safety across the entire farm‐to‐fork process. Integrating quantitative and qualitative data provides a multifaceted depiction of this pivotal component within the food supply chain. Ten focus group discussions were conducted, and in total, 50 vegetable handlers were interviewed separately. In the survey, there were 17 questions on food safety knowledge, 16 on food safety attitudes, and 17 on food safety‐related practices followed by vegetable handlers. We found that while approximately 60% of handlers had good knowledge about food safety, only about one‐quarter of the interviewed vegetable handlers had good attitudes and practices toward food safety. The attitudes and practices of individuals involved in handling vegetables demonstrate a complex range of variations shaped by factors such as educational background, prior experience, and availability of food safety training. Concerns regarding the rising expenses linked to adherence to food safety regulations and a perceived lack of accountability among those involved were also noted. The interviewed wholesaler group reported that approximately BDT 100–150 (USD 0.91–1.37¹)/maund¹ was incurred in maintaining proper safety practices, while the interviewed retailer group said costs would increase by BDT 20–40 (USD 0.18–0.36)/maund if they followed proper handling practices. It is important to note that vegetable handlers recognize the favorable economic consequences of implementing appropriate food safety measures. This study highlights the significance of implementing focused educational and policy interventions to address knowledge disparities and encourage the adoption of food safety procedures among individuals involved in handling vegetables.Item Open Access Knowledge, mātauranga and science: Reflective learning from the interface(Taylor & Francis Group, 2024)This essay offers reflective learning on how researchers in the Western science tradition connect to bodies of knowledge created and held outside that tradition. It begins with endogenous growth theory, which explains the unique role of knowledge as an input into economic production. The essay describes how Western science addresses the problem of validating and accessing knowledge, by hosting an expanding corpus of peer-reviewed publications. This academic knowledge does not contain all current knowledge. The essay therefore draws on the authors’ experience in four large research programmes to consider business knowledge and mātauranga Māori. It reflects on agency, tikanga [right behaviour], global conversations about Indigenous knowledge, and decolonising research. The essay finishes with models of knowledge engagement in the interface between western Science and mātauranga Māori that support the mana and integrity of diverse knowledge streams.Item Restricted House prices and airport proximity: Are they valued equally?This study contributes to understanding the link between the housing market, airport location proximity examining the entirety of the price distribution. The research investigates this association across four key urban areas within New Zealand proximal to an international airport - Auckland, Wellington, Christchurch, and Queenstown. Applying hedonic and Quantile regression, the analysis reveals that proximity to airports on house prices has a heterogeneous pricing effect. The regression analysis exhibits distance to comprise a positive effect within Auckland and Christchurch, whereas in Wellington and Queenstown the pricing effect is negative. The quantile regression findings further revealed differences between lower and higher priced properties value, given distance and proximity to airports within each city region. Auckland exhibits a positive distance decay effect moving from the lowest to the highest quantiles which diminishes and becomes negative illustrating that the highest priced properties consider closer proximity to airports comprise a dis-amenity effect on property value, alternatively, the lowest priced properties perceive adjacency to the airport as a positive amenity. Wellington also displays higher priced housing to exhibit much larger negative effects with proximity to the airport than lower priced housing. The findings show that whilst there is a negative impact for proximity to airport this is more pronounced for higher priced properties relative to lower priced properties. The Christchurch region reveals contrasting findings showing there to be a higher positive pricing effect for higher priced housing which gradually decreases when moving down the quantiles. With respect to Queenstown, the findings show a nominal but positive pricing effect for lower priced housing with a negative effect for the highest priced properties.
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