Developing Novel Combination Drying Method for Jackfruit Bulb Chips: Instant Controlled Pressure Drop (DIC)-Assisted Freeze Drying
文献类型: 外文期刊
第一作者: Yi, Jianyong
作者: Yi, Jianyong;Wang, Ping;Bi, Jinfeng;Liu, Xuan;Wu, Xinye;Wang, Ping;Zhong, Yaoguang
作者机构:
关键词: Expansion ratio;Texture;Color;Rehydration;Antioxidant activity;Microstructure
期刊名称:FOOD AND BIOPROCESS TECHNOLOGY ( 影响因子:4.465; 五年影响因子:4.793 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Jackfruit chips are very popular in South Asia; however, the quality of traditional hot air-dried jackfruit chips is not desirable due to brown color and high hardness. The effects of three drying methods, instant controlled pressure drop-assisted freeze drying (FD-DIC), instant controlled pressure drop-assisted hot air drying (AD-DIC), and freeze drying (FD), on the physicochemical characteristics, color, antioxidant activity, expansion ratio, texture, rehydration, hygroscopicity, and microstructure of jackfruit (Artocarpus heterophyllus L.) chips were investigated. The FD-DIC-dried jackfruit chips showed the highest expansion ratio (119 %), the best color (a-E-3, 6.5) and texture (hardness 42 N, crispness 19) compared with the FD- and AD-DIC-dried samples. A substantial increase in pore size was observed in the microstructure of the FD-DIC-dried chips. Compared with AD-DIC, the FD-DIC-finished jackfruit chips exhibited stronger antioxidant capacities (DPPH center dot free radical scavenging activity, ferric reducing power, and ABTS(center dot+) radical cation scavenging activity) and higher retention of phenolics (1.2 mg GAE g(-1)) and carotenoids (3.1 mu g CE g(-1)). In conclusion, the jackfruit chips produced by FD-DIC obtained a superior overall quality than the AD-DIC- and FD-dried samples. Considering the relatively high production cost of FD, this novel combination (FD-DIC) could be an alternative method for obtaining high-quality fruit chips or processing valuable agro-products.
分类号: TS2
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