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Food Res Int

Title:		Characterization of Roselle calyx from different geographical origins
Author(s):		Juhari NH; Bredie WLP; Toldam-Andersen TB; Petersen MA;
Address:		"Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, DK 1958, Frederiksberg C, Denmark; Department of Food Service and Management, Faculty of Food Science and Technology, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Electronic address: n_hanisah@upm.edu.my. Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, DK 1958, Frederiksberg C, Denmark. Electronic address: wb@food.ku.dk. Department of Plant and Environment Science, Faculty of Science, University of Copenhagen, Hojbakkegard Alle 13, Tastrup, Denmark. Electronic address: tbta@plen.ku.dk. Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, DK 1958, Frederiksberg C, Denmark. Electronic address: map@food.ku.dk"
Journal Title:		Food Res Int
Year:		2018
Volume:		20180621
Issue:
Page Number:		378 - 389
DOI:		10.1016/j.foodres.2018.06.049
ISSN/ISBN:		1873-7145 (Electronic) 0963-9969 (Linking)
Abstract:		"Roselle (Hibiscus sabdariffa L.) is considered an underexploited food crop with nutritional and large scale processing potential. Roselle can be utilized as a functional food, mainly due to being rich in vitamin C, anthocyanins, other phytochemicals, and natural color. Although Roselle has been widely planted and consumed, little is known about the composition of aroma profiles. In this study, seventeen samples of dried Roselle calyx were collected from eight countries and the aroma profiles were determined by dynamic headspace sampling and GC-MS and GC-olfactometry. Furthermore, total soluble solids, pH, and color L* a* b* were determined, and sugars and acids were measured using ion chromatography. There were significant (p?ª+
Keywords:		Acids/analysis Color Flowers/growth & development/*metabolism Gas Chromatography-Mass Spectrometry Hibiscus/growth & development/*metabolism Hydrogen-Ion Concentration Odorants/*analysis Olfactometry *Smell Sugars/analysis Volatile Organic Compounds/*meta;
Notes:		"MedlineJuhari, Nurul Hanisah Bredie, Wender L P Toldam-Andersen, Torben Bo Petersen, Mikael Agerlin eng Comparative Study Research Support, Non-U.S. Gov't Canada 2018/08/23 Food Res Int. 2018 Oct; 112:378-389. doi: 10.1016/j.foodres.2018.06.049. Epub 2018 Jun 21"