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标题：Changes in sugar contents and invertase activity during low temperature storage of various chipping potato cultivars
其他标题：Changes in sugar contents and invertase activity during low temperature storage of various chipping potato cultivars
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作者：AMJAD, Adnan ; JAVED, Muhammad Sameem ; HAMEED, Aneela 等
期刊名称：Food Science and Technology (Campinas)
印刷版ISSN：0101-2061
电子版ISSN：1678-457X
出版年度：2020
卷号：40
期号：2
页码：340-345
DOI：10.1590/fst.00219
出版社：Sociedade Brasileira de Ciência e Tecnologia de Alimentos
摘要：Storage of tubers is vital for uninterrupted supply to potato chips/fries industry. Cold storage is preferred to maintain tuber quality. However, prolonged storage at low temperature results in cold induced sweetening (CIS) leading to sugar accumulation and browning of chips. Slowing down the CIS is of economic importance for potato industry. Screening of potatoes after cold storage for low sugar and invertase activity with exploration of best frying color was the aim of current study. Reducing sugars (RS), invertase activity and chips color were estimated after subjecting the tubers at 3°C and 7°C storage. Analytical techniques were adopted for quantification of RS and invertase activity while nine-point Hedonic scale was used for chips color evaluation. Highest invertase activity with maximum RS (mg 100-1g) and dark brown chips were observed in Kuroda following the Santé (247.83), Asterix (216.73), Crozo (193.42), Hermes (171.57) and Lady Rosetta (134.07) after storage at 3°C. Low RS were found in tubers stored at 7°C with good frying color in Lady Rosetta (98.23) followed by Hermes (104.31) and Crozo (113.27). Conclusively storage temperatures have significant effect on quality of tubers in which 7°C proved best with less RS and invertase activity having good frying color..
关键词：quality; chips; enzyme; sugars; storage.
其他关键词：quality;chips;enzyme;sugars;storage