PMID- 35408704 OWN - NLM STAT- MEDLINE DCOM- 20220413 LR - 20230308 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 27 IP - 7 DP - 2022 Apr 1 TI - An Efficient Deacidification Process for Safflower Seed Oil with High Nutritional Property through Optimized Ultrasonic-Assisted Technology. LID - 10.3390/molecules27072305 [doi] LID - 2305 AB - Safflower seed oil (SSO) is considered to be an excellent edible oil since it contains abundant essential unsaturated fatty acids and lipid concomitants. However, the traditional alkali-refined deacidification process of SSO results in a serious loss of bioactive components of the oil and also yields massive amounts of wastewater. In this study, SSO was first extracted by ultrasonic-assisted ethanol extraction (UAEE), and the extraction process was optimized using random centroid optimization. By exploring the effects of ethanol concentration, solid-liquid ratio, ultrasonic time, and the number of deacidification times, the optimum conditions for the deacidification of safflower seed oil were obtained as follows: ethanol concentration 100%, solid-liquid ratio 1:4, ultrasonic time 29 min, and number of deacidification cycles (x2). The deacidification rate was 97.13% +/- 0.70%, better than alkali-refining (72.16% +/- 0.13%). The values of acid, peroxide, anisidine and total oxidation of UAEE-deacidified SSO were significantly lower than those of alkali-deacidified SSO (p < 0.05). The contents of the main lipid concomitants such as tocopherols, polyphenols, and phytosterols in UAEE-decidified SSO were significantly higher than those of the latter (p < 0.05). For instance, the DPPH radical scavenging capacity of UAEE-processed SSO was significantly higher than that of alkali refining (p < 0.05). The Pearson bivariate correlation analysis before and after the deacidification process demonstrated that the three main lipid concomitants in SSO were negatively correlated with the index of peroxide, anisidine, and total oxidation values. The purpose of this study was to provide an alternative method for the deacidification of SSO that can effectively remove free fatty acids while maintaining the nutritional characteristics, physicochemical properties, and antioxidant capacity of SSO. FAU - Xin, Leyu AU - Xin L AD - College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China. AD - Institute of Agro-Products Storage and Processing, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China. AD - Xinjiang Key Laboratory of Agro-Products Processing and Storage, Urumqi 830091, China. FAU - Guo, Limin AU - Guo L AD - Institute of Agro-Products Storage and Processing, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China. AD - Xinjiang Key Laboratory of Agro-Products Processing and Storage, Urumqi 830091, China. FAU - Edirs, Salamet AU - Edirs S AD - Institute of Agro-Products Storage and Processing, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China. AD - Xinjiang Key Laboratory of Agro-Products Processing and Storage, Urumqi 830091, China. FAU - Zhang, Zepeng AU - Zhang Z AD - College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China. FAU - Cai, Chenyang AU - Cai C AD - College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China. AD - Institute of Agro-Products Storage and Processing, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China. FAU - Yang, Yongxing AU - Yang Y AD - College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China. FAU - Lian, Yali AU - Lian Y AD - College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China. FAU - Yang, Haiyan AU - Yang H AD - College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China. LA - eng PT - Journal Article DEP - 20220401 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 RN - 0 (Alkalies) RN - 0 (Peroxides) RN - 0 (Plant Oils) RN - 3K9958V90M (Ethanol) RN - 8001-23-8 (Safflower Oil) SB - IM MH - Alkalies MH - *Carthamus tinctorius/chemistry MH - Ethanol/chemistry MH - Peroxides MH - Plant Oils/chemistry MH - Safflower Oil MH - Technology MH - Ultrasonics PMC - PMC9000557 OTO - NOTNLM OT - antioxidant capacity OT - lipid concomitants OT - random centroid optimization OT - safflower seed oil OT - ultrasonic-assisted ethanol extraction deacidification COIS- The authors declare no conflict of interest. EDAT- 2022/04/13 06:00 MHDA- 2022/04/14 06:00 PMCR- 2022/04/01 CRDT- 2022/04/12 01:11 PHST- 2022/02/25 00:00 [received] PHST- 2022/03/25 00:00 [revised] PHST- 2022/03/29 00:00 [accepted] PHST- 2022/04/12 01:11 [entrez] PHST- 2022/04/13 06:00 [pubmed] PHST- 2022/04/14 06:00 [medline] PHST- 2022/04/01 00:00 [pmc-release] AID - molecules27072305 [pii] AID - molecules-27-02305 [pii] AID - 10.3390/molecules27072305 [doi] PST - epublish SO - Molecules. 2022 Apr 1;27(7):2305. doi: 10.3390/molecules27072305.