000			02031nam a2200313Ia 4500
003			MX-MdCICY
005			20250625162444.0
040			_cCICY
090			_aB-20214
245	1	0	_aA comprehensive metabolomics analysis of Torreya grandis nuts with the effective de-astringent treatment during the postharvest ripening stage
490	0		_vFood Chemistry, 398, p.133859, 2023
520	3		_aAstringency removal is important for the quality of Torreya grandis nut and occurs after harvest. Here, we evaluated the effect of NaHCO3 treatment on astringency removal and compared the differential metabolites of the seed coat and kernel using a UHPLC QQQ-MS-based metabolomics approach. The result revealed the nut astringency was primarily enriched in the seed coat with more soluble tannins. The NaHCO3 treatment greatly shortened the de-astringency process, as indicated by a faster conversion of soluble tannins to insoluble tannins and more acetaldehyde production. Besides, a total of 293 metabolites, including 92 phenolic acids and 37 flavonoids, were tentatively characterized in the seed coat. A further comparative analysis of the metabolomics indicated epigallocatechin, gallocatechin, catechin, procyanidin B1, B2, B3 and C1 to be the major metabolites influenced by the NaHCO3 treatment. This study provides new insights regarding the metabolite differences of Torreya grandis nuts processed with different de-astringent treatments.
650	1	4	_aASTRINGENT SUBSTANCE
650	1	4	_aDE-ASTRINGENCY
650	1	4	_aMETABOLOME
650	1	4	_aNAHCO(3)TREATMENT
650	1	4	_aTANNIN
650	1	4	_aTORREYA GRANDIS
700	1	2	_aSong, L.
700	1	2	_aMeng, X.
700	1	2	_aSong, H.
700	1	2	_aGao, L.
700	1	2	_aGao, Y.
700	1	2	_aChen, W.
700	1	2	_aWu, J.
856	4	0	_uhttps://drive.google.com/file/d/1Xmgu6bS4ry92l6mjsBMaG8iYNuHGurrJ/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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