冷冻干燥法制备纯天然黑木耳速溶粉的研究-《武汉职业技术学院学报》

文章信息/Info

Title:: Research on Preparation of Pure Natural Black Fungus Instant Powder by Freeze-drying Method

Author(s):: CHEN Qi-guo; Bioengineering College, Wuhan Polytechnic, Wuhan430074, China

摘要:: 以黑木耳为原料，通过单因素和正交试验，获得了冷冻干燥法制备纯天然黑木耳速溶粉的最佳工艺条件。实验结果表明：适量60-80℃的RO水浸泡黑木耳10 min，去除其根部及附着在其表面的木屑、沙子等杂质，清洗干净，切成1~2cm的块状，按以1∶3的水量进行小火蒸煮15min，冷冻干燥，万能粉碎机粉碎，用3号药典筛过筛，按1∶50的75℃的RO水冲调黑木耳速溶粉，形成的糊状体抱团现象少、色泽自然、口感滑爽、风味柔和，为黑木耳的深加工提供了一个很好的途径。

Abstract:: Black fungus as raw material, through single factor and orthogonal experiment, the best process conditions of pure natural black fungus powder by freeze-drying preparation. The experimental results show that: the amount of 60-80 ℃ RO water soak black fungus 10 minutes, remove the root and attached to the surface of sawdust, sand and other impurities, wash clean, cut into 1~2cm block, according to 1∶3 water small fire cook for 15 minutes, freeze-drying, universal mill grinding, sieved with a No. 3 sieve pharmacopoeia, according to RO water 1∶50 75 ℃ for brewing black fungus instant powder, paste less body pushing into the phenomenon of formation, natural color, smooth taste, flavor and soft. It provides a very good way for deep processing black fungus.