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Molecules

Title:		Physicochemical Properties and Oxidative Storage Stability of Milled Roselle (Hibiscus sabdariffa L.) Seeds
Author(s):		Juhari NH; Petersen MA;
Address:		"Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, Frederiksberg C, DK-1958, 1165 Kobenhavn, Denmark. nurulhanisah.juhari@gmail.com. Department of Food Service and Management, Faculty of Food Science and Technology, University Putra Malaysia, Serdang 43400, Selangor, Malaysia. nurulhanisah.juhari@gmail.com. Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, Frederiksberg C, DK-1958, 1165 Kobenhavn, Denmark. map@food.ku.dk"
Journal Title:		Molecules
Year:		2018
Volume:		20180211
Issue:		2
Page Number:		-
DOI:		10.3390/molecules23020385
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Milled Roselle (Hibiscus sabdariffa L.) seeds of the UMKL cultivar were analyzed for proximate composition, water and oil absorption capacity, and the influence of storage conditions on storage stability. The storage stability was determined under four types of conditions: light/oxygen (air) (LO), light/nitrogen (LN), darkness/oxygen (air) (DO), and darkness/nitrogen (DN) while monitoring for seven consecutive months. During the storage period, the formation of volatiles was determined using dynamic headspace sampling and Gas Chromatography-Mass Spectrometry (GC-MS) analysis. In total, 85 volatiles were identified, mainly aldehydes, alcohols, ketones, furans, and acids indicating lipid oxidation. It is recommended that milled Roselle seeds should be flushed with nitrogen and stored in darkness. Under these conditions, the seeds can be stored for at least three months without changes in volatile profile. This is important to ensure the good quality of milled Roselle seeds for further commercialization"
Keywords:		Alcohols/chemistry/isolation & purification/metabolism Aldehydes/chemistry/isolation & purification/metabolism Food Storage/*methods Furans/chemistry/isolation & purification/metabolism Gas Chromatography-Mass Spectrometry Hibiscus/*chemistry/drug effects;
Notes:		"MedlineJuhari, Nurul Hanisah Petersen, Mikael Agerlin eng Switzerland 2018/02/15 Molecules. 2018 Feb 11; 23(2):385. doi: 10.3390/molecules23020385"