Structural characterization of water-soluble polysaccharides isolated from leaves of Hedera nepalensis

Ho, ChungHyok; Wang, Yuwen; Liu, Xianbin; Zhou, Yifa; Pak, UnHak; Sun, Lin

doi:10.1186/s40538-023-00427-2

Chemical and Biological Technologies in Agriculture

Table 3 Chemical shifts of the ¹³C-NMR spectra of WHNP-A2b, WHNP-A2c and WHNP-A3b

From: Structural characterization of water-soluble polysaccharides isolated from leaves of Hedera nepalensis

Fractions	Sugar Residues	Chemical Shifts, δ (ppm)
Fractions	Sugar Residues	C-1	C-2	C-3	C-4	C-5	C-6
WHNP-A2b	→ 4)-α-GalpA-(1 →	96.43	67.59	68.28	76.27	70.10	174.03
	→ 2)-α-Rhap-(1 →	97.48	75.49	69.20	71.89	70.75	15.51
	→ 2,4)-α-Rhap-(1 →	97.48	75.49	69.20	74.09	70.75	15.73
	→ 4)-β-Galp-(1 →	103.88	71.68	73.22	77.39	74.49	59.69
	t-β-Galp-(1 →	103.29	71.61	72.26	76.10	73.55	60.18
	→ 3)-β-Galp-(1 →	102.43	71.61	79.89	68.27	74.89	59.89
	→ 6)-β-Galp-(1 →	102.43	70.88	72.26	68.27	74.89	67.59
	→ 3,6)-β-Galp-(1 →	101.56	71.61	79.89	68.27	74.89	67.59
	→ 5)-α-Araf-(1 →	106.42	81.00	75.48	82.85	65.70	–
	→ 3,5)-α-Araf-(1 →	106.05	79.94	81.26	82.85	65.70	–
	t-α-Araf-(1 →	108.20	81.00	75.68	82.85	60.07	–
WHNP-A2c	→ 4)-α-GalpA-(1 →	98.41	66.90	67.30	76.90	70.10	173.75
	→ 4)-α-GalpA(OMe)-(1 →	99.35	–	67.60	77.90	70.10	169.86
	→ 2)-α-Rhap-(1 →	97.97	75.50	69.52	–	70.27	15.52
	→ 2,4)-α-Rhap-(1 →	97.97	75.50	69.52	74.02	70.27	15.88
	t-β-Galp-(1 →	102.88	71.40	72.58	75.67	74.92	60.10
	→ 3)-β-Galp-(1 →	102.42	71.40	79.88	67.35	74.92	58.98
	→ 6)-β-Galp-(1 →	102.42	71.40	72.58	67.35	74.92	67.10
	→ 3,6)-β-Galp-(1 →	101.88	71.40	79.88	67.35	74.92	67.10
	→ 5)-α-Araf-(1 →	106.42	81.09	75.48	82.95	65.70	–
	→ 3,5)-α-Araf-(1 →	105.98	80.01	82.69	82.95	65.70	–
	t-α-Araf-(1 →	108.30	81.09	–	82.95	60.08	–
WHNP-A3b	→ 4)-α-GalpA-(1 →	96.40	66.79	69.20	76.40	70.20	172.67
	→ 2)-α-Rhap-(1 →	97.72	75.10	68.31	71.86	69.22	15.39
	→ 2,4)-α-Rhap-(1 →	97.72	75.10	68.31	74.00	–	15.67
	t-β-Galp-(1 →	103.53	71.60	72.36	75.06	74.08	60.03
	→ 3)-β-Galp-(1 →	102.38	71.60	79.20	67.67	74.08	58.89
	→ 6)-β-Galp-(1 →	102.38	71.60	72.36	67.67	74.08	67.08
	→ 3,6)-β-Galp-(1 →	102.18	71.60	79.20	67.67	74.08	67.08
	→ 5)-α-Araf-(1 →	106.42	81.18	75.50	83.01	65.65	–
	→ 3,5)-α-Araf-(1 →	106.15	79.89	82.71	83.01	65.65	–
	t-α-Araf-(1 →	108.27	81.18	75.66	83.01	60.06	–

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