TY - JOUR
T1 - Extraction of carotenoids from tomato pomace via water-induced hydrocolloidal complexation
AU - Nagarajan, Jayesree
AU - Kay, Hang Pui
AU - Krishnamurthy, Nagendra Prasad
AU - Ramakrishnan, Nagasundara Ramanan
AU - Aldawoud, Turki M.S.
AU - Galanakis, Charis M.
AU - Wei, Ooi Chien
N1 - Funding Information:
Acknowledgments: The authors thank Monash University Malaysia for supporting the works. Jayesree Nagarajan is a recipient of MyBrain15 scholarship provided by the Ministry of Higher Education (MOHE) Malaysia.
Funding Information:
This research was funded by Ministry of Education (MOE) Malaysia under Fundamental Research Grant Scheme (FRGS/1/2013/SG01/MUSM/03/3). Acknowledgments: The authors thank Monash University Malaysia for supporting the works. Jayesree Nagarajan is a recipient of MyBrain15 scholarship provided by the Ministry of Higher Education (MOHE) Malaysia.
Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/7/9
Y1 - 2020/7/9
N2 - Agro-industrial waste is a largely untapped natural resource of bioactive compounds including carotenoids and pectin. However, conventional solvent extraction involves the excessive use of organic solvents, costly equipment, and tedious operation. These limitations of conventional extraction methods could be prospectively overcome by the carotenoid–pectin hydrocolloidal complexation. The complexation of lycopene and pectin was efficiently promoted in an aqueous environment, resulting in the colloidal complexes that can be subsequently recovered by sedimentation or centrifugation. In this study, the potential of carotenoid–pectin complexation on tomato pomace containing carotenoids and pectin was evaluated. Tomato pomace is a rich source of lycopene, β-carotene as well as pectin, making it suitable as the raw material for the carotenoid extraction. The extraction of carotenoid and pectin from tomato pomace was optimized using response surface methodology. The maximum recovery was 9.43 mg carotenoid fractions/100 g tomato pomace, while the purity of carotenoid-rich fractions was 92%. The antioxidant capacity of carotenoids extracted from the complexation method was found to be higher than that from the solvent extraction method. Moreover, extraction yield and antioxidant capacity of carotenoid obtained from the carotenoid–pectin complexation were comparable to that from solvent extraction. The carotenoid–pectin complexation is a promising green approach to valorize agro by-products for the extraction of valuable carotenoids.
AB - Agro-industrial waste is a largely untapped natural resource of bioactive compounds including carotenoids and pectin. However, conventional solvent extraction involves the excessive use of organic solvents, costly equipment, and tedious operation. These limitations of conventional extraction methods could be prospectively overcome by the carotenoid–pectin hydrocolloidal complexation. The complexation of lycopene and pectin was efficiently promoted in an aqueous environment, resulting in the colloidal complexes that can be subsequently recovered by sedimentation or centrifugation. In this study, the potential of carotenoid–pectin complexation on tomato pomace containing carotenoids and pectin was evaluated. Tomato pomace is a rich source of lycopene, β-carotene as well as pectin, making it suitable as the raw material for the carotenoid extraction. The extraction of carotenoid and pectin from tomato pomace was optimized using response surface methodology. The maximum recovery was 9.43 mg carotenoid fractions/100 g tomato pomace, while the purity of carotenoid-rich fractions was 92%. The antioxidant capacity of carotenoids extracted from the complexation method was found to be higher than that from the solvent extraction method. Moreover, extraction yield and antioxidant capacity of carotenoid obtained from the carotenoid–pectin complexation were comparable to that from solvent extraction. The carotenoid–pectin complexation is a promising green approach to valorize agro by-products for the extraction of valuable carotenoids.
KW - Antioxidant
KW - Carotenoid–pectin complexation
KW - Lycopene
KW - Pectin
KW - Tomato pomace
UR - http://www.scopus.com/inward/record.url?scp=85088033180&partnerID=8YFLogxK
U2 - 10.3390/biom10071019
DO - 10.3390/biom10071019
M3 - Article
C2 - 32660080
AN - SCOPUS:85088033180
SN - 2218-273X
VL - 10
JO - Biomolecules
JF - Biomolecules
IS - 7
M1 - 1019
ER -