Optimization of ultrasonic-assisted extraction of pigment from Dioscorea cirrhosa by response surface methodology and evaluation of its stability

Abstract

Response surface methodology (RSM) was utilized to optimize the ultrasonic-assisted extraction (UAE) of Dioscorea cirrhosa pigment (DCP).

Optimisation of the ultrasound-assisted extraction of betalains and polyphenols from Amaranthus hypochondriacus var. Nutrisol

“…Nevertheless, high temperature values affect sonication, reducing the cavitation phenomenon because an increase in the vapour pressure of the solvent favours the vapour to be inserted into the cavities of the bubbles formed, which causes a less violent collapse [17] , [18] , [45] , [46] , decreasing compounds extraction. Similar behaviours and trends of decreased pigment content at high temperatures and potencies were reported by Karchiyappan et al [47] , Maran et al [48] , Maran and Priya [49] , and Zhong et al [22] in ultrasonic extraction of betalains from fruits of Malabar spinach ( S. oleracea ), beet stems ( Beta vulgaris L.), Bougainvillaea glabra flowers, and anthocyanins from Dioscorea cirrhosa tubers, respectively. Still, BT determined by conventional extraction control was 1.39 times lower than UAE treatment.…”

“…Although increases in ultrasound power favour the extraction of compounds contained at the cellular level [18] , this positive effect could be counteracted by the application of high levels of temperature in the medium. This is because of the impact of temperature on the minimisation of cavitation [17] , [18] , [19] , as also reported in other studies [20] , [21] , [22] . However, researches about the influence of temperature and UPD on the UAE of bioactive compounds from amaranth are limited.…”

Extraction Optimization, UHPLC-Triple-TOF-MS/MS Analysis and Antioxidant Activity of Ceramides from Sea Red Rice Bran

“…For example, although Cers types extracted via EAE were less than those extracted via UAE, the yields were similar. These results indicated that the yield, chemical properties, and biological activity of Cers may vary with the extraction techniques used, and these findings are consistent with those reported in the existing literature [32][33][34].…”

A new integrated strategy for high purity pinolenic acid production from Pinus koraiensis Sieb. et Zucc seed oil and evaluation of its hypolipidemic activity in vivo

“…It can be seen from the model variance analysis in Table S2 that the regression equation model P<0.0001 of this experiment is significant, and the lack of fit term is not significant (P=0.0775>0.05), indicating that the model is successfully fitted (Huang et al, 2018;Yu-Juan et al, 2017). According to the regression equation, draw the response surface diagram of ω with the changes of various influencing factors, and the results are shown in Figure 6.…”