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International Journal of Radiation Research، جلد ۹، شماره ۴، صفحات ۲۶۵-۲۷۰
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عنوان انگلیسی Combined effects of gamma irradiation and silver nano particles packing on the chemical characteristics and sensory properties of saffron, using hurdle technology
چکیده انگلیسی مقاله Background: Saffron, the dried stigmas of crocus sativus, is the world's most expensive spice which has been used as food additive and flavoring agent. The aim of the present study has been to investigate the combination effects of gamma irradiation and silver nano particles packing on the chemical properties of saffron during storage time. A combination of hurdles can ensure stability and microbial safety of foods. Materials and Methods: To investigate the combination effects, saffron samples were packed by Poly Ethylene films which were possed up to 300 ppm nano silver particles as antimicrobial agents and then irradiated in cobalt – 60 irradiator (gamma cell Model: PX30, dose rate 0.55 Gy/sec ) to 0, 1, 2 ,3 and 4 kGy at room temperature. UVspectrophotometer was used to quantify the most important components crocin, picrocrocin and safranal which were respectively responsible for color, taste and odor. Results: Statistical analysis showed that irradiation and silver nano particles films packing could increase the flavor and aroma of saffron, and the best optimum dose of irradiation was 2 kGy. Also, sensory evaluation showed no significant difference between them (P< 0.05). Conclusion: Hurdle technology has been more effective than irradiation or nano-silver particles packing methods. Therefore combined method can be used for microbial decontamination of saffron with no significant differences on chemical characteristics and sensory attributes. Iran. J. Radiat. Res., 2012 9(4): 265-270
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نویسندگان مقاله e حمید ثالث | e hamid sales
islamic azad university, varamin branch, faculty of agriculture, department of food industry, varamin, iran

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

s رجبی فر | s. rajabifar
agricultural, medical and industrial research school amirs , karaj, iran


f معتمدی سده | f motamedi sedeh
agricultural, medical and industrial research school amirs , karaj, iran
نشانی اینترنتی http://www.ijrr.com/browse.php?a_code=A-10-1-412&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده مرور و بررسی کلی
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