TY - JOUR
T1 - Extracting Ferulic Acid from Corn Fibre Using Mild Alkaline Extraction: A Pilot Scale Study
AU - Valério, Rita
AU - Cadima, Mafalda
AU - Crespo, João G.
AU - Brazinha, Carla
N1 - Funding Information:
info:eu-repo/grantAgreement/FCT/FARH/PD%2FBDE%2F113543%2F2015/PT#
info:eu-repo/grantAgreement/FCT/FARH/PD%2FBDE%2F113543%2F2015/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04378%2F2019/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F50006%2F2013/PT#
PY - 2022/1
Y1 - 2022/1
N2 - Purpose: There is an increasing demand from the cosmetic, pharmaceutical and food industries for naturally sourced ferulic acid. This study used alkaline extraction under mild operating conditions to recover ferulic acid from corn fibre, with the aim of developing a cost-effective process. The aim was to develop an efficient process of mild alkaline extraction, with an efficient balance between the maximum concentration of ferulic acid and its recovery yield, while producing low-viscous extracts. Methods: Alkaline extraction experiments were performed at different scales (laboratory, semi-pilot and pilot scales) to select various operating conditions (type of raw material, concentration of NaOH, liquid-to-solid ratio, time and temperature of extraction) involved in this process. Results: The optimised mild alkaline extraction conditions obtained were: wet corn fibre, without milling and drying, as a starting material followed by extraction with an alkaline solution of NaOH with a concentration of 0.25 M, use of a liquid-to-solid ratio of 10.0 g(extracting solution+ water in the fibre) g−1dry corn fibre, during a period of 7 h at a temperature of 30 ºC. Conclusions: A low-cost, efficient extraction process of ferulic acid from corn fibre (without any pre-treatment) was developed at pilot scale. The resultant extract had ferulic acid concentration and recovery yield, respectively of 2.10 ± 0.09 gferulic acid.L−1 and 11.14 ± 1.00 Kgferulic acid Ton−1dry corn fibre. Graphical Abstract: [Figure not available: see fulltext.].
AB - Purpose: There is an increasing demand from the cosmetic, pharmaceutical and food industries for naturally sourced ferulic acid. This study used alkaline extraction under mild operating conditions to recover ferulic acid from corn fibre, with the aim of developing a cost-effective process. The aim was to develop an efficient process of mild alkaline extraction, with an efficient balance between the maximum concentration of ferulic acid and its recovery yield, while producing low-viscous extracts. Methods: Alkaline extraction experiments were performed at different scales (laboratory, semi-pilot and pilot scales) to select various operating conditions (type of raw material, concentration of NaOH, liquid-to-solid ratio, time and temperature of extraction) involved in this process. Results: The optimised mild alkaline extraction conditions obtained were: wet corn fibre, without milling and drying, as a starting material followed by extraction with an alkaline solution of NaOH with a concentration of 0.25 M, use of a liquid-to-solid ratio of 10.0 g(extracting solution+ water in the fibre) g−1dry corn fibre, during a period of 7 h at a temperature of 30 ºC. Conclusions: A low-cost, efficient extraction process of ferulic acid from corn fibre (without any pre-treatment) was developed at pilot scale. The resultant extract had ferulic acid concentration and recovery yield, respectively of 2.10 ± 0.09 gferulic acid.L−1 and 11.14 ± 1.00 Kgferulic acid Ton−1dry corn fibre. Graphical Abstract: [Figure not available: see fulltext.].
KW - Corn fibre
KW - Ferulic acid
KW - Mild alkaline extraction
KW - Pilot-scale
UR - http://www.scopus.com/inward/record.url?scp=85110724776&partnerID=8YFLogxK
U2 - 10.1007/s12649-021-01514-x
DO - 10.1007/s12649-021-01514-x
M3 - Article
AN - SCOPUS:85110724776
SN - 1877-2641
VL - 13
SP - 287
EP - 297
JO - Waste and Biomass Valorization
JF - Waste and Biomass Valorization
IS - 1(SI)
ER -