| Title: | Physicochemical properties and volatile profile of chili shrimp paste as affected by irradiation and heat |
| Author(s): | Cheok CY; Sobhi B; Mohd Adzahan N; Bakar J; Abdul Rahman R; Ab Karim MS; Ghazali Z; |
| Address: | "Department of Chemical and Petroleum Engineering, Faculty of Engineering, Technology & Built Environment, UCSI University, Lot 12734, Jalan Choo Lip Kung, Taman Taynton View Cheras, 56000 Kuala Lumpur, Malaysia. Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Electronic address: noraadzahan@upm.edu.my. Radiation Processing Division, Malaysia Nuclear Agency, 43000 Kajang, Bangi, Selangor, Malaysia" |
| DOI: | 10.1016/j.foodchem.2016.08.011 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "Chili shrimp paste (CSP) is an exotic traditional Southeast Asian condiment prepared using mainly fresh chilies and fermented shrimp paste (belacan) which attributed to strong pungent fishy odor. This study aims to evaluate the effectiveness of electron beam irradiation (EBI) exposure on CSP for microorganisms decontamination, and its physicochemical qualities changes. Changes in capsaicinoid contents and volatile compounds were analyzed using HPLC and GC-MS. Mesophilic bacteria, yeast, mold and pathogenic Enterobacteriaceae decreased as irradiation dose increasing from 0 to 10kGy. EBI at 10kGy effectively decontaminated the samples with no significant effects on phenolic and capsaicinoids contents compared to the fresh samples. From 24 compounds, irradiated CSP retained 23 volatile compounds, while thermally treated CSP has only 19 compounds. EBI at 10kGy is effective for decontamination in CSP with lesser destructive effect on volatile compounds and texture compared to thermal treatment" |
| Keywords: | "Animals Capsaicin/analysis *Chemical Phenomena Crustacea Dose-Response Relationship, Radiation Enterobacteriaceae/isolation & purification/radiation effects Fermentation Food Contamination/prevention & control *Food Handling *Food Irradiation Food Microbi;" |
| Notes: | "MedlineCheok, Choon Yoong Sobhi, Babak Mohd Adzahan, Noranizan Bakar, Jamilah Abdul Rahman, Russly Ab Karim, Muhammad Shahrim Ghazali, Zulkafli eng England 2016/09/07 Food Chem. 2017 Feb 1; 216:10-8. doi: 10.1016/j.foodchem.2016.08.011. Epub 2016 Aug 5" |
