Abstract:

To utilize the pomace of Ziziphus jujube var. spinosa (PZJS) and solve the resource waste and environmental contamination caused by processing of Z. jujube var. spinosa, a study was conducted to cultivate Hericium erinaceus by culture substrates adding different ratios (20%, 40%, 60% and 80%) of PZJS into conventional corncob formula and investigate the yield and nutritional components of H. erinaceus. The results showed that the mycelial growth rate of H. erinaceus was decreased and the periods for mycelial incubation and fruiting were extended with the increased addition of PZJS. When the PZJS proportion in the cultivation formulation was 20% and 40%, the yield of H. erinaceus was significantly increased and the quality of fruit body was improved, showing the increase of the fresh mushroom water content and the crude protein content, the decrease of the crude fat and fiber, and the increase of the essential amino acids content, and the quality of protein was closer to the FAO/WHO recommended level, and the content of iron was significantly increased comparing with that of CK. Our results indicated that it was feasible to cultivate H. erinaceus using the PZJS and the adding ratio of PZJS should be controlled in the range of lower than 40%. The study could provide a scientific method for the comprehensive utilization of PZJS and broaden the source of edible fungus cultivation substrate.

Key words: Hericium erinaceus, Pomace of Ziziphus jujube var. spinosa, Nutritional Component, Utilization of Substrate, Iron