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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Chitin and Chitosan-Value-Added Products from Mushroom Waste.
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Chitin and Chitosan-Value-Added Products from Mushroom Waste.

机译：蘑菇废料的甲壳质和壳聚糖增值产品。

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摘要

Accumulation of chitinous material in Agaricus bisporus stalks was determined during postharvest storage at 4 and 25 degrees C. The chitinous material was extracted after alkali treatment and acid reflux of alkali insoluble material and analyzed for yield, purity, degree of acetylation (DA), and crystallinity. The total glucosamine content in mushroom stalks increased from 7.14% dry weight (DW) at harvest (day 0) to 11.00% DW and 19.02% DW after 15 days of storage at 4 degrees C and 5 days of storage at 25 degrees C, respectively. The yield of crude chitin isolated from stalks stored at 25 degrees C for 5 days was 27.00% DW and consisted of 46.08% glucosamine and 20.94% neutral polysaccharides. The DA of fungal chitin was from 75.8 to 87.6%, which is similar to commercially available crustacean chitin. The yield of crude fungal chitin of 0.65-1.15% on a fresh basis indicates the potential for the utilization of these mushroom byproducts.
机译：在4和25℃的采后贮藏中测定双孢蘑菇茎中几丁质物质的积累。碱处理和碱不溶性物质的酸回流后提取几丁质物质，并分析其收率，纯度，乙酰化度（DA）和结晶度。在4摄氏度下储存15天和在25摄氏度下储存5天后，蘑菇茎中的总氨基葡萄糖含量从收获时（第0天）的7.14％干重（DW）分别增加到11.00％DW和19.02％DW 。从在25摄氏度下储存5天的茎中分离的粗壳多糖的收率为27.00％DW，由46.08％的葡萄糖胺和20.94％的中性多糖组成。真菌几丁质的DA为75.8至87.6％，与市售甲壳类甲壳质相似。按新鲜基准计，粗真菌甲壳质的收率为0.65-1.15％，表明有可能利用这些蘑菇副产物。

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