Effects of irradiation and drying on volatile components of fresh shiitake (Lentinus edodesSing)

✍ Scribed by Yang, Ming-Sheng; Chyau, Charng-Cherng; Horng, Deng-Tsen; Yang, Jui-Sen

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 183 KB
• Volume: 76
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/(sici)1097-0010(199801)76:1<72::aid-jsfa921>3.0.co;2-0

✦ Synopsis

Fresh shiitake (L entinus edodes Sing) was irradiated with doses of 0É5, 1 and 2 kGy using 60Co. E †ects of c-irradiation and drying on the volatile composition of shiitake were studied by gas chromatography (GC) and GCÈmass spectrometry. Irradiation above 1É0 kGy could inhibit the growth and mould decay of fresh shiitakes after harvesting. Irradiation with 2 kGy increased the eight-carbon volatile components of fresh shiitake. Treatment at 1 kGy irradiation of fresh shiitake produced some new volatile compounds in the dry product, such as methylethyl disulphide, sulphinylbis methane, methyl(methylthio)ethyl disulphide and N-(3-methylbutyl) acetamide. The eight-carbon compounds mostly disappeared after drying. The amount of sulphur-containing volatile compounds in dried shiitake became lower during irradiation. Irradiation with doses of 1 or 2 kGy of fresh shiitake did not increase the volatile content of shiitake after drying.

1998 SCI.