ApJ, in press
ApJ, in press
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1999
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柿树（Diospyros kaki L.）以及所研究的生物活性化合物和总自由基清除活性的以下变化摘要新鲜柿子经过两种不同的处理：晒干1个月和在60 ℃下脱水12 h。为了评估这一过程对柿子的营养和健康相关特性的影响，膳食纤维，矿物质，微量元素，多酚和总自由基清除活性（TRSA）的测定前和后处理。结果表明，鲜柿子和干柿子的膳食纤维、矿物质和微量元素含量相当。鲜柿中总多酚含量高于干柿（分别为1.3与0.9和0.8 mg/100 g FW）和抑制百分比高于干果（对于1，1-二苯基-2-苦基肼（DPPH）和2，2个0-连氮基-双（3-乙基苯并噻唑啉-6-磺酸）[ABTS]自由基（所有病例均为P40.05）。最后：结果表明：（1）鲜柿和干柿的膳食纤维、矿物质和微量元素含量差异不显著;（2）鲜柿的多酚类物质含量和总抗坏血酸含量高于干柿，而干柿的这两项指标也高于干柿;（3）在无鲜果供应时，适当的干柿可作为一种有价值的替代品。
Drying of persimmons (Diospyros kaki L.) and the following changes in the studied bioactive compounds and the total radical scavenging activities Abstract Fresh persimmons were subjected to two different processes: sun-drying during 1 month and dehydration at 60 1C during 12 h. To assess the effect of this process on nutritional and health-related properties of persimmons dietary fibers, minerals, trace elements, polyphenols and the total radical scavenging activities (TRSAs) were determined before and after processing. It was found that the contents of dietary fibers, minerals and trace elements in fresh and dried persimmons fruits were comparable. Total polyphenols in fresh persimmons was higher than in dried fruits (1.3 vs. 0.9 and 0.8 mg/100 g FW, respectively) and percentage of inhibition was higher than in dried fruits (70% vs. 59% and 55% and 58% vs. 53% and 46% for 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2 0-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) [ABTS] radicals, respectively (P40.05 in all cases). In conclusion: (1) the differences in the contents of dietary fibers, minerals and trace elements in fresh and dried persimmons are not significant; (2) the contents of polyphenols and the level of the TRSA are higher in fresh persimmons than in dried fruits; however, both variables are also high in dried persimmons; (3) when fresh fruits are not available, proper dried persimmons could be used as a valuable substitute.