College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China.
College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China.
Food Chem. 2020 Nov 30;331:127287. doi: 10.1016/j.foodchem.2020.127287. Epub 2020 Jun 10.
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 (SeCys ) (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.
猴头菇是一种传统的食用蘑菇。硒（Se）是人类和其他哺乳动物必需的微量元素。为了开发猴头菇的硒生物强化策略，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。在体外测试了富硒猴头菇中硒的生物可及性和主要硒形态。与亚硒酸盐和硒酸盐相比，SeMet 更有效地影响猴头菇的生长。子实体中的硒浓度随着基质硒浓度的增加而增加，并干扰了其他微量元素的积累。基质硒被吸收并转化为有机形式。富硒子实体中的主要硒形态为 SeMet（>63.9%）。在体外胃肠道消化试验中，总硒的 51%被释放，硒代胱氨酸（SeCys）（90%）和硒甲基硒代半胱氨酸（MeSeCys）（76%）比 SeMet（51%）更容易消化。猴头菇被认为是补充生物可利用硒的新型膳食来源。
