安徽农学通报 >
2024 , Vol. 30 >Issue 19: 42 - 47
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2024.19.009
双孢蘑菇褐变过程营养成分和酶活性的变化
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朱莉莉(1972—),女,安徽舒城人,农艺师,从事种子管理和农业技术推广研究。 |
Copy editor: 吴思文
收稿日期: 2024-05-09
网络出版日期: 2024-10-14
基金资助
天长市智能装备及仪表研究院专项资金“秸秆栽培双孢蘑菇及其菌糠的综合利用技术集成与示范”(tzy202112)
Variations of nutrient composition and enzymes in Agaricus bisporus during the browning process
Received date: 2024-05-09
Online published: 2024-10-14
为深入了解双孢蘑菇采收后在常温储存下褐变过程的生理生化变化,本试验测定了双孢蘑菇的失重率、褐变度与可溶性糖、蛋白质、丙二醛和脯氨酸含量,以及多酚氧化酶、过氧化物酶、酪氨酸酶和漆酶的活性。结果表明,在常温储存条件下,随着时间的延长,双孢蘑菇的失重率和褐变程度不断增加,丙二醛、可溶性糖和脯氨酸含量呈先上升后下降的趋势,蛋白质含量持续下降。多酚氧化酶和过氧化物酶的活性先上升,达到最高值后下降至初始水平;酪氨酸酶活性整体呈下降趋势,最后维持低活性状态;漆酶活性波动较小,并始终维持在低水平状态。在双孢蘑菇褐变过程中,随着水分的不断流失,渗透调节物质发生波动以应对褐变反应,相关酶活性发生变化,多酚氧化酶和过氧化物酶协同推动褐变进程。
朱莉莉 , 何华奇 . 双孢蘑菇褐变过程营养成分和酶活性的变化[J]. 安徽农学通报, 2024 , 30(19) : 42 -47 . DOI: 10.16377/j.cnki.issn1007-7731.2024.19.009
In order to investigate the physiological and biochemical changes of the browning process of Agariculus bisporus after harvesting and storage at room temperature, the weight loss rate, browning degree, soluble sugar, protein, malondialdehyde, and proline contents, as well as the activity of polyphenol oxidase, peroxidase, tyrosinase and laccase of Agariculus bisporus were measured. The results showed that the browning degree and weight loss rate of Agaricum bispora increased with the extension of time, the contents of malondialdehyde, soluble sugar and proline increased first and then decreased, the protein content continued to decrease. The activities of polyphenol oxidase and peroxidase increased first, reached the highest value, and then decreased to the initial level. The activity of tyrosinase decreased and remained low at last. Laccase activity fluctuated little and remained at a low level. In the browning process of Agariculus bisporus, with the continuous loss of water, osmotic regulatory substances fluctuate to cope with the browning reaction, and related enzyme activities change, polyphenol oxidase and peroxidase cooperate to promote the browning process.
Key words: Agaricus bisporus; browning; nutrient composition; polyphenol oxidase; peroxidase
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