Therapeutic effect of natural melanin from edible fungus Auricularia auricula on alcohol-induced liver damage in vitro and in vivo

This study explored the therapeutic effects of Auricularia auricula melanin(AAM)on alcoholic liver damage in vitro and in vivo.Human normal liver L02 cells were pre-treated with ethanol and then treated with AAM to explore the therapeutic effect of AAM on ethanol-induced hepatocyte injury.The results show that AAM signifi cantly elevated the cell viability,ameliorated the cell morphology,reduced the ROS and increased the GSH/GSSG of ethanol-pretreated L02 cells.Then,mice were administered with ethanol to induce acute alcoholic liver damage,and administered with AAM to further study the therapeutic effect of AAM on alcoholic liver damage in mice.As a result,AAM reduced the levels of ALT,AST,TG,and MDA,increased the levels of ADH,SOD,and CAT in liver damage mice.The therapeutic effect of AAM may be related to inhibition of CYP2E1 expression and activation of Nrf2 and its downstream antioxidase.The research enriched the bioactivity of AAM and provided some ideas for the development of melanin-related health foods.

Preparation technology of ultra-fine powders of Auricularia auricular

Conventional mechanical method and mechanical method combined with vacuum freeze-drying technology were used to make the ultra-fine powders of edible fungus (Auricularia auricular). The content of basic nutrients, amino acid, micro structure and their properties of raw edible fungus and the edible fungus powders obtained with the two methods were analyzed and compared. The granularity size and micro-structure of the pulverized samples were analyzed by SEM and TEM technology. The average granularity size of the edible fungus powder obtained with mechanical method was 1–5 μm, while that obtained with mechanical method combined with vacuum freeze-drying process was 0.5–1 μm. The ultra-fine powders of edible fungus obtained with the two methods had better water recovery capability and quality, and their preserving time was longer than that of raw edible fungus. All the properties of the ultra-fine powders of edible fungus obtained with the vacuum freeze-drying technology were evidently superior to that of the conventional mechanical method. Keywords Auricularia auricula - Edible fungus - Ultra-fine powders - Vacuum freeze-drying CLC number TS205 Document code B Biography: YANG Chun-yu (1975), female, Ph. D. in Engineering Technology Center of Forestry and Wood Workine, Machinery, Northeast Forestry University, Harbin 150040, P. R. China.Responsible editor: Zhu Hong

西南地区优良黑木耳品种筛选和活性成分研究

为满足西南地区黑木耳主栽品种的选择要求,利用代料栽培对916、新科5号、黑衫、草优和8808五个黑木耳品种的栽培农艺性状及多糖和麦角甾醇含量分析试验筛选出最适宜品种。结果表明,从菌丝长势、子实体农艺性状、多糖和麦角甾醇得率等方面进行评价,916为最适合在西南地区进行代料栽培品种。

黑木耳干预心血管事件链的研究进展

介绍了黑木耳及其有效成分,以及抗氧化、降低血糖和血脂、减少动脉斑块形成和抗凝等作用对整个心血管病事件链的干预研究进展;提出应开展更为广泛的科学研究可进一步发现黑木耳对心血管疾病的潜在治疗价值及其作用机制,促进食疗干预心血管疾病的发展,提高护士饮食宣教的科学性,使病人和健康人群能在饮食中收获和维持健康。

东北有机黑木耳大数据营销平台设计

本文立足电商兴农、服务东北农业经济发展,助力精准扶贫以振兴东北农业经济发展,基于互联网技术和大数据技术,围绕东北有机黑木耳产品大数据平台推广项目展开,为东北农产品有机黑木耳设计和规划大数据平台,并设计出其实施方案,以推广和销售有机黑木耳,实现"兴边富民"的经济发展目标,同时为其它农产品电子商务网站推广项目提供借鉴和参考,达到以点带动面振兴东北农业经济发展的效果。

富硒红茶酵素饮料的工艺研究

为了丰富食品种类、增加食品中硒含量和酵素成分,本文研制开发了富硒红茶酵素饮料,将新鲜的水果、木耳加入富硒茶叶进行配比,发酵制成富硒红茶酵素饮料,产品的理化指标、卫生指标、营养指标均符合相应标准,制成的产品是一种含硒营养品,富含有多种微量元素和营养成份,营养价值高。

黑木耳变温压差软化工艺优化研究

为解决黑木耳在食用时口感较硬、不易咀嚼等问题,采用变温压差膨化技术,通过单因素试验和正交设计优化试验进行黑木耳变温压差软化工艺的研究,并比较变温压差膨化与传统热处理方式的软化效果。结果表明:黑木耳变温压差软化最佳工艺参数为物料含水率70%、膨化温度90℃、膨化压差0.45 MPa,在此条件下,黑木耳硬度为0.401 kg/cm^2,感官得分可达8.6。与传统蒸制、煮制热处理方式相比,经变温压差膨化所得黑木耳的硬度和感官品质要明显好于蒸制和煮制。