中国南岳山区一种未记录野生哈氏乳菇子实体和菌丝培养物的营养价值、元素生物累积和抗氧化活性。

Hanyu Zhu, Zheng Chen, Yujing Hu, Geqing Li, Xiaoqian Yao, Limin Cao
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引用次数: 0

摘要

在中国南岳山区发现了一种未被记录的野生蘑菇乳菇。随后,对该物种的子实体(FB)和菌丝体(MY)样品的营养价值、元素生物累积和抗氧化活性进行了比较研究。结果表明,FB的水分含量(87.66±0.16g/100g fw)和灰分含量(6.97±0.16g/100 g dw)显著高于MY,总碳水化合物、脂肪和蛋白质浓度与MY相似。在营养重要元素中,FB具有较高的钾(37808.61±1237.38mg/kg dw)、铁(470.69±85.54mg/kg dw),和锌(136.13±5.16 mg/kg dw),而MY是镁(1481.76±18.03 mg/kg dw。根据健康风险估计,FB在长时间接触铝时可能会造成与铝相关的健康问题,而MY对消费者来说是无风险的。FB和MY的抗氧化能力(1,1-二苯基-2-苦基肼(DPPH)和2,2'-叠氮双(3-乙基苯并噻唑啉-6-磺酸)二铵盐(ABTS)测定)在104.19±5.70mg抗坏血酸当量(AAE)/g至169.50±4.94mg AAE/g的范围内,半数最大有效浓度EC50值为0.23±0.01 mg/mL至0.62±0.05 mg/mL。MY水提物具有较强的ABTS自由基清除能力,AAE值最高。
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Nutritional value, elemental bioaccumulation and antioxidant activity of fruiting bodies and mycelial cultures of an unrecorded wild Lactarius hatsudake from Nanyue mountainous region in China.

An unrecorded wild mushroom Lactarius hatsudake from Nanyue mountainous region in China was identified. Subsequently, comparative investigation on the nutritional value, elemental bioaccumulation, and antioxidant activity was performed in the fruiting body (FB) and mycelium (MY) samples of this species. It revealed that the contents of moisture (87.66 ± 0.16 g/100 g fw) and ash (6.97 ± 0.16 g/100 g dw) were significantly higher in FB, and the total carbohydrate, fat, and protein concentrations of FB were similar to those in MY. Among nutritionally important elements, FB possessed higher concentrations of potassium (37808.61 ± 1237.38 mg/kg dw), iron (470.69 ± 85.54 mg/kg dw), and zinc (136.13 ± 5.16 mg/kg dw), whereas MY was a better source of magnesium (1481.76 ± 18.03 mg/kg dw), calcium (2203.87 ± 69.61 mg/kg dw), and sodium (277.44 ± 22.93 mg/kg dw). According to the health risk estimation, FB might pose an aluminum-related health problem when a prolonged period of exposure, while MY was risk-free for consumers. The results of antioxidant capacity (1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assays) in FB and MY were within the range of 104.19 ± 5.70 mg ascorbic acid equivalents (AAE)/g to 169.50 ± 4.94 mg AAE/g, and half maximal effective concentration EC50 values ranged from 0.23 ± 0.01 mg/mL to 0.62 ± 0.05 mg/mL. The aqueous extracts of MY demonstrated a strong ABTS radical scavenging capacity with the highest AAE value.

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