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Location: On-Demand
Short Description: Customizable, inexpensive electronic systems present an opportunity for scientists and small businesses to build inexpensive research and quality assessment tools that fit their exact needs. This presentation discusses some available technologies and recently developed systems for quality analysis in fruit, vegetable, and nut.
Description:
Customizable electronic systems are continuously becoming more affordable and user friendly. This presents an opportunity for scientists and small businesses to build inexpensive research and quality assessment tools to fit their exact needs. This presentation discusses some available technologies and recently developed systems for quality analysis in fruits, vegetables, and nuts. One such system developed in our lab measures produce transpiration rate and predicts water loss during storage using a novel model that accounts for changes in water loss rate over time. This measurement system is non-destructive, portable, and less than $120 to construct. Furthermore, measurements can be made in less than a minute, enabling high throughput readings. Respiration can also be measured through the addition of a CO2 sensor. Water loss predictions for tomatoes, peppers, mangos, peaches, green onions, green beans, and parsley parsley compare well with measured weight loss during storage (Pearson’s correlation=0.964, N=65). As part of a research based undergraduate course using this system, our lab is testing the effects of various physical injuries and treatments through real time water loss measurements. We have also developed a simple system for measuring surface moisture on greens. Additionally, our lab has developed a system that measures lipid oxidation in nuts and oils in 2-5 minutes. This system is nondestructive and costs less than $60 to construct. Measurements of walnut and olive oil samples are well correlated with gas chromatography measurements of hexanal, a commonly measured product of lipid oxidation (Pearson’s correlation=0.958, N=20). This presentation will cover details of these technologies and steps for building similar systems to fit specific research or quality assessment needs. This session is part of the Scientific Discovery Workgroup Research Promotion (Pre-Tenured Faculty)
