Effects of combining electron-beam or gamma irradiation treatments with further storage under modified atmospheres on the bioactive compounds of Tuber melanosporum truffles

被引：24
作者：
Tejedor-Calvo, Eva [1 ,2 ]
Morales, Diego [2 ]
Marco, Pedro [1 ]
Eugenia Venturini, Maria [3 ]
Blanco, Domingo [3 ]
Soler-Rivas, Cristina [1 ]
机构：
[1] Zaragoza Univ, Agrifood Inst Aragon IA2, Agrifood Res & Technol Ctr Aragon CITA, Forest Resources Dept,CITA, Zaragoza, Spain
[2] UAM, CSIC, Inst Food Sci Res CIAL, Dept Prod & Characterizat Novel Foods, Madrid, Spain
[3] Univ Zaragoza, CITA, IA2, Plant Food Res Grp,Dept Food Technol, Zaragoza, Spain
来源：
POSTHARVEST BIOLOGY AND TECHNOLOGY | 2019年 / 155卷
关键词：
gamma irradiation; Electron-beam irradiation; Black truffle; T; melanosporum; Bioactive compounds; POSTHARVEST QUALITY; ENZYME-ACTIVITIES; SENSORY CHARACTERISTICS; MICROBIAL-POPULATIONS; AGARICUS-BISPORUS; BUTTON MUSHROOM; SHELF-LIFE; ERGOSTEROL; CHITIN; AESTIVUM;
D O I：
10.1016/j.postharvbio.2019.05.022
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The effects of electron-beam or gamma irradiation (both applied at 1.5 kGy and 2.5 kGy) and subsequent storage under modified atmospheres (35 d at 4 degrees C) were evaluated on total carbohydrates, chitins, beta-glucans, proteins, total phenols, sterols and ergocalciferol concentrations of Tuber melanosporum ascocarps. Irradiation procedures reduced chitin and protein concentrations and modified total phenol levels depending on the dose and irradiation type utilized. Further storage of irradiated truffles maintained the levels of all determined compounds unchanged except for the phenolic compounds and ergosterol levels that increased probably due to their yeast colonization after 21 d storage. Therefore, irradiation plus storage under modified atmosphere packings could be used as a preservation method to extent truffles quality and shelf life, but it is only recommended up to 21 d. The lower irradiation doses are encouraged to diminish protein degradation.
引用
收藏
页码：149 / 155
页数：7
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