Determination of Phenolic Compounds and Bioactive Potential of Plum (Prunus salicina) Peel Extract Obtained by Ultrasound-Assisted Extraction

Table 1

Optimization of extraction of bioactive compounds from black plum peels.

Exp. no.	Independent variables			Response variables
	Temperature (°C)	Time (min)	Solvent (%)	TAC (mg/g)	TPC (mg GAE/g)	DPPH inhibition (%)
1	35	30	50	4.69	5.88	73.03
2	55	30	90	3.94	2.48	84.92
3	45	45	90	3.51	2.41	89.31
4	45	30	70	5.78	5.53	94.0
5	45	15	90	3.27	3.79	70.86
6	45	30	70	4.94	6.01	93.06
7	45	15	50	1.62	3.57	86.41
8	35	30	90	5.03	2.23	84.58
9	35	15	70	4.13	2.67	91.71
10	55	15	70	5.37	5.90	92.62
11	55	45	70	4.89	6.30	93.0
12	45	30	70	5.27	6.15	84.68
13	45	45	50	6.22	7.38	52.59
14	55	30	50	5.76	6.092	63.98
15	35	45	70	4.94	4.375	88.74
16	45	30	70	2.05	6.63	88.44
17	45	30	70	4.19	5.025	91.98