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首页> 外文期刊>Acta Horticulturae >Improvement of Tomato Product Quality by Changing Temperature Conditions during the First 11 Days after Harvest
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Improvement of Tomato Product Quality by Changing Temperature Conditions during the First 11 Days after Harvest

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It is a major challenge for supermarkets to provide the consistently excellent fruit quality required to support high levels of consumption and minimise waste, both during the supply chain and after purchase. Low temperatures are extensively used during transport and storage of fruit, aiming to minimise waste, despite known risks of detrimental effects on fruit quality and nutritional value. Freshly harvested tomatoes, at ripening stage 3, were initially kept at a constant, relatively-high temperature of 23°C (room temperature, RT) and compared with typical supply chain temperatures of 8-12°C (supply chain, SC) before evaluation of nutrient composition and taste. Seven days after harvest, a consumer panel preferred RT tomatoes to SC by 25 (p<0.001). At this stage the RT tomatoes had almost 3-fold higher sum of lycopene levels (p=0.006), 55 more lutein (p=0.028) and 7 more total soluble solids (p=0.021). To assess effects during subsequent storage at home by the consumer, tomatoes from each treatment were then kept for an additional 4 days, either at room temperature (23°C) (as on a kitchen shelf) (SCRT, RTRT), or at 5°C (as in a domestic refrigerator) (SCF, RTF). RTRT tomatoes still had the largest concentration of sum of lycopene (p<0.001), and the three treatments involving room temperature periods achieved similar sensory preference scores, while SCF was least favoured (p<0.001) by up to 42. SCRT had similar levels of vitamin C to SCF but 55 and 76 more than that of RTRT and RTF (p=0.012). This research demonstrates that substantial improvements in tomato quality can be achieved by optimising the postharvest temperatures, both in the supply chain and during storage in the consumer's home, and that further research is required into optimisation of this aspect of supply chain management.

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