TY - JOUR
T1 - Selective recovery of phenolic compounds and carbohydrates from carob kibbles using water-based extraction
AU - Almanasrah, Mohammad
AU - Roseiro, Luísa B.
AU - Bogel-Lukasik, Rafal
AU - Carvalheiro, Florbela
AU - Brazinha, Carla
AU - Crespo, João
AU - Kallioinen, Mari
AU - Mänttäri, Mika
AU - Duarte, Luís C.
N1 - Sem PDF.
PY - 2015/8/1
Y1 - 2015/8/1
N2 - Carob kibbles are an important renewable source of valuable compounds, such as fermentable sugars and phenolic compounds. However, the selective recovery of these compounds is not a trivial task. In this work, a strategy was developed to enable the recovery of both classes of compounds by means of a water-based extraction.One-step extraction recovered only approximately 20% of the phenolic compounds, corresponding to an extraction yield of 0.6g Gallic acid equivalents (GAE)/100g dry mass of carob kibbles. The obtained extract contained a significant amount of carbohydrates (110g/L). The alternative two-step extraction developed enabled higher compound selectivity together with an increase in the yield of the phenolic compounds to about 70%, corresponding to 1.9gGAE/100g carob dry matter. The two-step extraction was easily scaled-up and is an effective method to obtain significantly separated carbohydrates and polyphenol-rich streams that can be further processed, e.g., in biorefineries or food industries, respectively.
AB - Carob kibbles are an important renewable source of valuable compounds, such as fermentable sugars and phenolic compounds. However, the selective recovery of these compounds is not a trivial task. In this work, a strategy was developed to enable the recovery of both classes of compounds by means of a water-based extraction.One-step extraction recovered only approximately 20% of the phenolic compounds, corresponding to an extraction yield of 0.6g Gallic acid equivalents (GAE)/100g dry mass of carob kibbles. The obtained extract contained a significant amount of carbohydrates (110g/L). The alternative two-step extraction developed enabled higher compound selectivity together with an increase in the yield of the phenolic compounds to about 70%, corresponding to 1.9gGAE/100g carob dry matter. The two-step extraction was easily scaled-up and is an effective method to obtain significantly separated carbohydrates and polyphenol-rich streams that can be further processed, e.g., in biorefineries or food industries, respectively.
KW - Aqueous extraction
KW - Biorefinery
KW - Fermentable sugars
KW - Glucose fructose syrup
KW - Scale-up
UR - http://www.scopus.com/inward/record.url?scp=84926487871&partnerID=8YFLogxK
U2 - 10.1016/j.indcrop.2015.02.051
DO - 10.1016/j.indcrop.2015.02.051
M3 - Article
AN - SCOPUS:84926487871
SN - 0926-6690
VL - 70
SP - 443
EP - 450
JO - Industrial Crops and Products
JF - Industrial Crops and Products
ER -
