title: Effect of post harvest radiation processing and storage on the volatile oil composition and glucosinolate profile of cabbage.
abstract: Effect of radiation processing (0.5-2 kGy) and storage on the volatile oil constituents and glucosinolate profile of cabbage was investigated. Among the volatile oil constituents, an enhancement in trans-hex-2-enal was noted on irradiation that was attributed to the increased liberation of precursor linolenic acid mainly from monogalactosyl diacyl glycerol (MGDG). Irradiation also enhanced sinigrin, the major glucosinolate of cabbage that accounted for the enhanced allyl isothiocyanate (AITC) in the volatile oils of the irradiated vegetable. During storage the content of trans-hex-2-enal increased immediately after irradiation and then returned to the basal value within 24h while the content of sinigrin and AITC increased post irradiation and thereafter remained constant during storage. Our findings on the enhancement in potentially important health promoting compounds such as sinigrin and AITC demonstrates that besides extending shelf life and safety, radiation processing can have an additional advantage in improving the nutritional quality of cabbage.
authors.affiliation: Food Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
authors.forename: Aparajita
authors.initials: A
authors.lastname: Banerjee
authors.affiliation: Food Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. Electronic address: pvariyar@barc.gov.in.
authors.forename: Prasad S
authors.initials: PS
authors.lastname: Variyar
authors.affiliation: Food Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
authors.forename: Suchandra
authors.initials: S
authors.lastname: Chatterjee
authors.affiliation: Food Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
authors.forename: Arun
authors.initials: A
authors.lastname: Sharma
mesh_terms: D001937:Brassica / Q000737:chemistry*; D005511:Food Handling; D061353:Food Storage; D005961:Glucosinolates / Q000737:chemistry*; D006801:Humans; D017879:Isothiocyanates / Q000737:chemistry*; D009822:Oils, Volatile
chemical_list: D005961:Glucosinolates; D017879:Isothiocyanates; D009822:Oils, Volatile; C004471:allyl isothiocyanate
keywords: Allyl isothiocyanate; Brassica oleracea; Gamma irradiation; Glucosinolates; Lipoxygenase pathway; trans-Hex-2-enal