Novel techniques for controlling the growth of and aflatoxin production by Aspergillus parasiticus in packaged peanuts |
| |
| Affiliation: | 1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, PR China;2. School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China;1. State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, PR China;2. Graduate University of Chinese Academic of Sciences, Beijing 100190, PR China;3. College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China;4. Key Laboratory of Grain Information Processing and Control of Ministry of Education, Henan University of Technology, Zhengzhou 450001, PR China;1. Beijing Key Laboratory of Optimized Design for Modern Agricultural Equipment, College of Engineering, China Agricultural University, No. 17 Tsinghua East Road, Beijing 100083, China;2. Crop Genetics and Breeding Research Unit, USDA-ARS, 2747 Davis Road, Tifton, GA 31793, USA;3. Quality & Safety Assessment Research Unit, Richard B. Russell Research Center, USDA-ARS, 950 College Station Rd., Athens, GA 30605, USA;1. Amity Institute of Nanotechnology, Amity University Uttar Pradesh, Noida 201303 India;2. Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi, India;3. Department of Applied Chemistry & Polymer Technology, Delhi Technological University, Delhi 110042, India;4. Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi 110012, India;5. Department of Biotechnology, Delhi Technological University, Delhi 110042, India |
| |
| Abstract: | The effects of modified atmosphere packaging involving oxygen absorbents, storage temperature and packaging film barrier characteristics on the growth of and aflatoxin production by Aspergillus parasiticus in packaged peanuts was investigated. Mold growth was barely visible in air-packaged peanuts using a high gas barrier film (ASI) while extensive mold growth was observed in peanuts packaged under similar gaseous conditions using a low barrier film (ASIII). Incorporation of an oxygen absorbent (Ageless type S) inhibited mold growth in peanuts packaged in film ASI, while mold growth occurred in peanuts packaged with an absorbent/carbon dioxide generator (Ageless type G) in film ASI and in all absorbent-packaged peanuts in film ASIII. Aflatoxin B1 production was detected at levels greater than the regulatory limit of 20 ng g-1 in air-packaged peanuts using film ASI at 20°C and 25°C with the maximum level of aflatoxin (52·95 ng g-1) being detected in air-packaged peanuts using film ASIII. However, aflatoxin production in all absorbent-packaged peanut samples was less than the regulatory level of 20 ng g-1 irrespective of the barrier characteristics of the packaging film. Discoloration was more intensive in air-packaged peanuts in film ASIII especially at 25°C and 30°C than those packaged under similar or modified gaseous conditions using film ASI. This study has shown that oxygen absorbent technology is a simple and effective means of controlling the growth of and aflatoxin production by A. parasiticus. However, the effectiveness of these absorbents is dependent on the gas barrier properties of the packaging film surrounding the product. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
