[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 9, Number 4 (3-2012) ::
IJRR 2012, 9(4): 265-270 Back to browse issues page
Combined effects of gamma irradiation and silver nano particles packing on the chemical characteristics and sensory properties of saffron, using hurdle technology
E. Hamid Sales, Dr. S. Rajabifar , F. Motamedi Sedeh
, srajabifar@nrcam.org
Abstract:   (3882 Views)
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
Keywords: Saffron, gamma irradiation, silver nano particles, crosin, picrocrocin, safranal
Full-Text [PDF 295 kb]   (2227 Downloads)    
Type of Study: Reviews and Perspectives | Subject: Radiation Biology
Send email to the article author

Add your comments about this article
Your username or email:

Write the security code in the box >



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Hamid Sales E, Rajabifar S, Motamedi Sedeh F. Combined effects of gamma irradiation and silver nano particles packing on the chemical characteristics and sensory properties of saffron, using hurdle technology. IJRR. 2012; 9 (4) :265-270
URL: http://ijrr.com/article-1-821-en.html
Volume 9, Number 4 (3-2012) Back to browse issues page
International Journal of Radiation Research
Persian site map - English site map - Created in 0.051 seconds with 793 queries by yektaweb 3479