The Lentinula edodes is the third most widely produced mushroom in the world. It is a rich source of proteins, fats, carbohydrates, fiber, vitamins, minerals and β -glucan. The aim of the this study was to evaluate the physicochemical characteristics changes such as proximate composition, minerals, and contents of β -glucan according to the different product area. And we evaluated the antioxidant properties of L. edodes. Also, we determined the standardization of manufacture process for commercial products using L. edodes. Eleven L. edodes were cultivated in oak, and samples were collected by different product area. And the L. edodes cultivated in sawdust have been producted in Jangheung. All samples are shade dried and those dried samples were used for this test.

Many Wild Mushrooms were collected at Yuchi recreational Forests areas for 1 day in July 2010 and 3 days in August 2010. They were identified and examined with references. According to the result, Species diversities are 1 division, 2 classes, 3 subclasses, 5 orders, 13 familys, 20 genera and 28 species. Dominant famillie are Tricholomataceae. Dominant genus are Amanita. Dominant species are Amanita verna (Bull. : Fr.) Roques and Coriolus versicolor (L. : r.) Quel. Resources of Wild Mushrooms were 2 species in edibility, 3 species in clulture, 12 species in toxine, 5 species in medicine, 2 species in anticancer, 11 species in ectomycorrizahe and 4 species in rotten wood.

Ionizing treatments were applied at 5Gy, 10Gy, 50Gy, 100Gy and 500Gy to mushroom mycelium (Lentinula edodes) in order to assesss the effect of the gamma-ray radiation. We mutated by gamma irradiation, 12 strains were isolated. 9 strains of 12 strains were appeared antagonistic interaction on solid medium. Growth rate of mycelium in JMIR-3 and JMIR-6 strains were similar to their control. But, the growth rate of strain JMIR-1, JMIR-2, JMIR-4, JMIR-5, JMIR-7, JMIR-8, JMIR-9, JMIR-10, JMIR-11 and JMIR-12 had generally different compared to control. In the sequence of ITS region of selected strains, it was revealed that the total length ranged from 696 to 780bp. The reciprocal homologies of the ITS region sequences in 5Gy irradiation group (JMIR-5, JMIR-6, JMIR-7 and JMIR-8) and 10Gy irradiation group (JMIR-9, JMIR-10, JMIR-1 and JMIR-12) indicated 99%. The reciprocal homologies of the ITS region sequences in 500Gy irradiation group (JMIR-1, JMIR-2, JMIR-3 and JMIR-4) indicated from 95 to 99%. It seemed that mycelium growth and ITS sequence could be changed the irradiation dose of the gamma-ray radiation.

A Lentinula edodes has abundant nutritious components such as a fiber, minerals and vitamins. It also was known to effective of anticancer and the immune enhancement. However, studies of mushroom-re1ated products were not still enough. Mushroom jerky was examined by using the under grade Lentinula edodes in this study. Content of stipe was most appropriate 24-30% in slices of dried mushroom. A grinder used 2mm sieve, and graund three or four times. A mushroom and spices were boiled to 30min in order to control the microbe occurrence. A mushroom, water, spices were mixed at ratio of 1 : 4: 1.5 and boiled 10 minutes for sterilization. The optimum drying temperature was 60~70℃ but the edge of slice was burned 80~90℃. Dry time was most appropriate for 4~5 hours.

A Lentinula edodes was known to the excellent foods that abundant in nutritious components such as a fiber, minerals and vitamins. Fermentation conditions for rice wine were examined by using the medicinal herbs and the incuvated-rice with mycelia of Lentinula edodes. The average of ethanol contents was in the range of 3.4~4.1% at initial fermentation, increasing up to 16.9% after 15 days. Total acid, pH, reducing sugar and alcohol content were similar to the control during storage periods. The change of colors was measured by Hunter's color value during fermentation. The L value was the highest on 15th day of fermentation.