کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10999813 | 1416505 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Active LDPE films loaded with biopesticides by supercritical CO2-assisted impregnation for stored grain protection
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The aim of this contribution was to obtain bioactive materials for stored grain protection and food preservation, by incorporating a biopesticide (1-octen-3-ol) in polyethylene (LDPE) films using supercritical CO2-assisted impregnation. The influence of different pressures and depressurization rates on impregnation yield was investigated. Results revealed that the best impregnation yield of biopesticide in the films (Yâ=â3.39â±â0.27%) is associated with low depressurization rate (0.5âMPaâmin-1) and mild pressure conditions (~9âMPa). The release kinetics of 1-octen-3-ol from the impregnated films was also investigated. In addition, the biocidal activity of impregnated films obtained at the best operational conditions was tested towards two of the main pests of stored grains. Films showed insecticidal activity against Sitophilus zeamais (100% mortality after 24âh) and also produced a decrease of the fungal growth rate of Fusarium verticillioides (55% inhibition).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Packaging and Shelf Life - Volume 18, December 2018, Pages 80-86
Journal: Food Packaging and Shelf Life - Volume 18, December 2018, Pages 80-86
نویسندگان
Jimena M. Herrera, Nicolás A. Gañán, MarÃa L. Goñi, Julio A. Zygadlo, Raquel E. Martini,