Inulin rich carbohydrates extraction from Jerusalem artichoke (Helianthus tuberosus L.) tubers and application of different drying methods.

Autor: Rubel IA; Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad Nacional del Centro de la Provincia de Buenos Aires, Av. del Valle 5737, B7400JWI Olavarría, Argentina. Electronic address: irubel@fio.unicen.edu.ar., Iraporda C; Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad Nacional del Centro de la Provincia de Buenos Aires, Av. del Valle 5737, B7400JWI Olavarría, Argentina., Novosad R; Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad Nacional del Centro de la Provincia de Buenos Aires, Av. del Valle 5737, B7400JWI Olavarría, Argentina., Cabrera FA; PLAPIQUI (Universidad Nacional del Sur - CONICET). Camino La Carrindanga KM 7, B8000 Bahía Blanca, Argentina. Electronic address: fcabrera@plapiqui.edu.ar., Genovese DB; PLAPIQUI (Universidad Nacional del Sur - CONICET). Camino La Carrindanga KM 7, B8000 Bahía Blanca, Argentina. Electronic address: dgenovese@plapiqui.edu.ar., Manrique GD; Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad Nacional del Centro de la Provincia de Buenos Aires, Av. del Valle 5737, B7400JWI Olavarría, Argentina. Electronic address: gmanrique@fio.unicen.edu.ar.
Jazyk: angličtina
Zdroj: Food research international (Ottawa, Ont.) [Food Res Int] 2018 Jan; Vol. 103, pp. 226-233. Date of Electronic Publication: 2017 Oct 23.
DOI: 10.1016/j.foodres.2017.10.041
Abstrakt: In this study the operational extraction variables to obtain higher yields of inulin from Jerusalem artichoke tubers (JAT), as well as the optimal conditions to obtain a stable and dispersible powdered product by either spray or freeze drying, were studied. With this purpose, the powder yield, moisture content, water activity and flowability or products obtained by different experimental conditions were analyzed. Inulin rich carbohydrates (IRC) extraction was performed from lyophilized and ground tubers employing distilled hot water as solvent. It was proved that the solid:solvent ratio (S:S) was the critical variable in the extraction process, followed by temperature. Thus, the IRC extraction was optimal without ultrasound assistance, at 76°C, employing a S:S of 1:16, during 90min. In addition, the powder obtained by freeze-drying of the IRC extract showed advantages respect to powders obtained by spray-drying regarding the yield and considering that maltodextrin was not necessary as encapsulation agent. In another hand, spray drying process provided IRC powered materials with appropriate flow properties, and taking into account cost and time of production, this method should be considered as an alternative of freeze-drying.
(Copyright © 2017 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: