Hericium erinaceus is a traditional edible mushroom. Selenium (Se) is an essential trace element for humans and other mammals. To develop a Se biofortification strategy for H. erinaceus, the effects of selenate, selenite, and selenomethionine (SeMet) on Se uptake and mushroom growth were investigated. Selenium bioaccessibility and the major Se species present in Se-enriched H. erinaceus were tested in vitro . The H. erinaceus growth was efficiently affected by SeMet than by selenite and selenate. Selenium concentrations in fruiting bodies increased with substrate Se concentration and disturbed accumulation of other microelements. Substrate Se was absorbed and transformed into organic forms. The major Se species in Se-enriched fruiting bodies was SeMet (>63.9%). During in vitro gastrointestinal digestion tests, 51% of total Se was released, and selenocystine (SeCys2 ) (90%) and Se-methylselenocysteine (MeSeCys) (76%) were more easily digested than SeMet (51%). H. erinaceus is suggested as a novel dietary source of supplemental bioavailable Se.

译文

:猴头猴属(Hericium erinaceus)是一种传统的食用菌。硒是人类和其他哺乳动物必不可少的微量元素。为了制定针对猴头菌的硒生物强化策略,研究了硒酸盐,亚硒酸盐和硒代蛋氨酸(SeMet)对硒吸收和蘑菇生长的影响。体外测试了硒的生物可及性和富硒猴头菌中主要硒的种类。 SeMet比亚硒酸盐和硒酸盐更有效地影响了猴头菌的生长。子实体中的硒浓度随着底物硒浓度的增加和其他微量元素的积累而增加。底物Se被吸收并转变成有机形式。富硒子实体中的主要硒物种为硒蛋氨酸(> 63.9%)。在体外胃肠道消化测试中,总硒的释放量为51%,硒代半胱氨酸(SeCys2)(90%)和硒代甲基硒代半胱氨酸(MeSeCys)(76%)比SeMet(51%)更容易消化。有人建议将H. erinaceus作为补充生物利用性硒的新型饮食来源。

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