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首页> 外文期刊>Anais da Academia Brasileira de Ciências >Effect of gamma irradiation on the nutritional quality of Agaricus bisporus strains cultivated in different composts
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Effect of gamma irradiation on the nutritional quality of Agaricus bisporus strains cultivated in different composts

机译:γ射线辐照对不同堆肥栽培双孢蘑菇菌株营养品质的影响

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摘要

The effect of irradiation doses (0, 125, 250 and 500 Gy) on the nutritional quality of A. bisporus mushrooms (strains ABI-07/06, ABI-05/03 and PB-1) cultivated in composts based on oat straw (Avena sativa) and brachiaria (Brachiaria sp.) was evaluated. The experimental design was 4 x 3 x 2 factorial scheme (irradiation doses x strains x composts), with 24 treatments, consisting of two repetitions each, totaling 48 experimental units (samples of mushrooms). The samples were irradiated in Cobalt-60 irradiator, model Gammacell 220 kGy, with dose rate of 0.740 kGy h~(-1), according to the treatments proposed. Subsequently, the control (unirradiated) and the other treatments were maintained at 4±1°C and 90% RH in a climatic chamber for carrying out the chemical analysis of the mushrooms on the 1~(st) and 14~(th) day of storage. It was found that all A. bisporus strains evaluated were food with excellent nutritional value, because they presented high protein and fiber contents and low ethereal extract content; the chemical characterization of the mushrooms was influenced by the compost type in which they were cultivated; gamma irradiation influenced the chemical composition of mushrooms.
机译:辐照剂量(0、125、250和500 Gy)对在以燕麦秸秆为基础的堆肥中培养的双孢蘑菇(菌株ABI-07 / 06,ABI-05 / 03和PB-1)的营养质量的影响评价了Avena sativa和Brachiaria(Brachiaria sp。)。实验设计为4 x 3 x 2阶乘方案(辐照剂量x菌株x堆肥),共进行24种处理,每组重复两次,共48个实验单位(蘑菇样品)。根据建议的处理方法,将样品在Cobalt-60辐照器(型号为Gammacell 220 kGy)中辐照,剂量率为0.740 kGy h〜(-1)。随后,将对照(未辐照)和其他处理在气候室中保持在4±1°C和90%RH,以在第一天和第14天对蘑菇进行化学分析。的存储。结果发现,所有评估的双孢曲霉菌株都是具有极高营养价值的食品,因为它们的蛋白质和纤维含量高,醚提取物含量低。蘑菇的化学特性受其堆肥类型的影响。伽马射线辐射影响了蘑菇的化学成分。

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