. 2023 Jul 26;9(8):e18684. doi: 10.1016/j.heliyon.2023.e18684

Table 3.

Anthocyanin compounds of the purple-flesh-colored sweet potato samples according to cooking methods (mean ± standard deviation).

	Anthocyanins (mg/100 g)	RT*	m/z (−)*	Baking	Boiling	Sous vide
1	Cy 3-soph-5-glc	16.53	773	12.8 ± 0.19^c	17.1 ± 0.26^b	21.3 ± 0.31^a
2	Peo 3-soph-5-glc	20.26	787	21.4 ± 0.31^c	46.1 ± 0.64^b	54.3 ± 0.76^a
3	Cy 3-p-hydroxybenzoylsoph-5-glc	29.82	893	24.5 ± 0.34^b	25.7 ± 0.36^b	38.5 ± 0.53^a
4	Cy 3-(6‴-caffeoyl soph)-5-glc	42.51	935	22.0 ± 0.31^c	31.1 ± 0.43^b	40.2 ± 0.56^a
5	Peo 3-p-hydroxybenzoylsoph-5-glc	35.43	907	93.2 ± 1.11^c	102.4 ± 1.41^b	118.2 ± 1.63^a
6	Peo 3-(6‴-caffeoyl soph)-5-glc	44.04	949	59.5 ± 0.82^c	109.3 ± 1.50^b	112.7 ± 1.55^a
7	Cy 3-feruloyl soph-5-glc	45.29	949	39.1 ± 0.54^a	34.9 ± 0.48^b	40.4 ± 1.65^a
8	Peo 3-feruloyl soph-5-glc	42.01	963	11.5 ± 0.18^a	10.5 ± 0.15^a	12.1 ± 0.17^a
9	Peo 3-caf-fer soph-5-glc	46.82	963	53.1 ± 0.73^c	77.3 ± 1.06^b	98.0 ± 1.35^a
10	Cy 3-caf-p-hb soph-5-glc	43.61	1055	21.3 ± 0.29^b	17.5 ± 0.24^c	27.5 ± 0.39^a
11	Cy 3-caffeoyl-feruloylsoph-5-glc	44.23	1111	19.2 ± 0.27^b	15.5 ± 0.22^c	24.2 ± 0.36^a
12	Peo 3-caf-p-hb soph-5-glc	45.55	1069	191.2 ± 2.33^a	176.7 ± 1.29^c	222.0 ± 3.05^a
13	Peo 3-fer-p-hb soph-5-glc	47.85	1125	40.4 ± 0.57^b	32.0 ± 0.44^c	46.6 ± 0.64^a
	Total anthocyanins (mg/100g)			609.0 ± 7.8^c	696.1 ± 8.5^b	855.9 ± 11.8^a
	Groups of anthocyanins (mg/100g; %):
	Non-acylated anthocyanin			34.2 ± 0.50 5.6% ± 0.02%	63.2 ± 0.89 9.1% ± 0.02%	75.6 ± 1.07 8.8 ± 0.04%
	Monoacylated anthocyanin			249.4 ± 3.43 41.0% ± 0.02%	313.9 ± 4.32 45.1% ± 0.01%	361.9 ± 5.14 42.3% ± 0.10%
	Diacylated anthocyanin			324.5 ± 4.48 53.4% ± 0.00%	319.7 ± 4.40 45.9% ± 0.01%	418.3 ± 5.75 48.9 ± 0.07%
	Cyanidin-based anthocyanin			138.9 ± 1.94 22.8% ± 0.03%	141.8 ± 1.98 20.3% ± 0.03%	192.1 ± 2.98 22.5% ± 0.14%
	Peonidin-based anthocyanin			469.1 ± 6.46 77.1% ± 0.03%	554.9 ± 7.64 79.6 ± 0.03%	663.8 ± 9.13 77.5 ± 0.14%

*RT: retention time (min); m/z: mass/charge value. ^a-c Different letters in same row indicate significant differences (p < 0.05).