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Effect of spray drying conditions on the yield and physicochemical properties of Roselle (Hibiscus Sabdariffa L.) powder [electronic resource].

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Sallam, Y. I

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Language: English Summary language: Arabic Description: P. 1229-1243Other title:

تأثير عملية التجفيف بالرزاز على العائد والخواص الفيزوكيمائية لمسحوق الكركديه (Hibiscus Sabdariffa L) [Added title page title]

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Mansoura university journal of agricultural sciences, 2007 v. 32 (2) [electronic resource].

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In: Mansoura Unviersity Journal of Agricultural Sciences 2007.v.32(2)Summary: Roselle extract was spray dried using a maltodextrin of 5 dextrose equivalent (DE) as a carrier material. The influence of a number of process variables, namely, inlet air temperature (130-190 0c). drying air flow rate (19.39- 22.23 m3/h) and compressed air flow rate (600-800 L/h) on the yield and the physicochemical properties of spray dried powder were investigated. The physicochemical properties of the product (moisture content, solubility, bulk density, monomeric anthocyanins content and the percent polymeric color) were studied.

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Roselle extract was spray dried using a maltodextrin of 5 dextrose equivalent (DE) as a carrier material. The influence of a number of process variables, namely, inlet air temperature (130-190 0c). drying air flow rate (19.39- 22.23 m3/h) and compressed air flow rate (600-800 L/h) on the yield and the physicochemical properties of spray dried powder were investigated. The physicochemical properties of the product (moisture content, solubility, bulk density, monomeric anthocyanins content and the percent polymeric color) were studied.

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