TY - JOUR
T1 - Nanofiltration and reverse osmosis as a platform for production of natural botanic extracts: The case study of carob by-products
AU - Almanasrah, Mohammad
AU - Ferreira, Carla Maria Carvalho Gil Brazinha de Barros
AU - Kallioinen, Mari
AU - Duarte, Luís C.
AU - Roseiro, Luísa B.
AU - Bogel-Lukasik, Rafal
AU - Carvalheiro, Florbela
AU - Mänttäri, Mika
AU - Crespo, João G.
N1 - This work was partially supported by GSCE-Finland, by FEDER (Programa Operacional Factores de Competitividade, COMPETE) and by Fundacao para a Ciencia e a Tecnologia, FCT, Portugal, project PTDC/AGR-ALI/122261/2010). The authors would also like to acknowledge FCT for the Pos Doctoral Fellow Grant SFRH/BPD/79533/2011 of Carla Brazinha.
PY - 2015/6/20
Y1 - 2015/6/20
N2 - Carob kibbles are a low-cost and renewable source of economically relevant phenolic compounds (high value catechin and its derivatives and gallic acid) and abundant in small sugars. This work aims at producing two distinct natural extracts from carob kibbles, one extract enriched in catechin and its derivatives for the nutraceuticals market and an extract enriched in sugars for the food industry. This valorisation strategy involves an integrated process based on membrane technology that fulfils the zero discharge principle and may be applied to other agro-industrial by-products. Different aqueous extraction schemes were considered (a one-step process and a two-steps approach). The aqueous extracts obtained were fractionated by diananofiltration and the fractions obtained were evaluated in terms of their content in target products. An integrated scheme for production of fractionated extracts is proposed based on the experimental work developed assuring, simultaneously, a minimal use of resources and emission of waste.
AB - Carob kibbles are a low-cost and renewable source of economically relevant phenolic compounds (high value catechin and its derivatives and gallic acid) and abundant in small sugars. This work aims at producing two distinct natural extracts from carob kibbles, one extract enriched in catechin and its derivatives for the nutraceuticals market and an extract enriched in sugars for the food industry. This valorisation strategy involves an integrated process based on membrane technology that fulfils the zero discharge principle and may be applied to other agro-industrial by-products. Different aqueous extraction schemes were considered (a one-step process and a two-steps approach). The aqueous extracts obtained were fractionated by diananofiltration and the fractions obtained were evaluated in terms of their content in target products. An integrated scheme for production of fractionated extracts is proposed based on the experimental work developed assuring, simultaneously, a minimal use of resources and emission of waste.
KW - Carob
KW - Diafiltration
KW - Nanofiltration
KW - Natural extract
KW - Phenolic compounds
UR - http://www.scopus.com/inward/record.url?scp=84934967106&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2015.06.008
DO - 10.1016/j.seppur.2015.06.008
M3 - Article
AN - SCOPUS:84934967106
SN - 1383-5866
VL - 149
SP - 389
EP - 397
JO - Separation and Purification Technology
JF - Separation and Purification Technology
ER -