TY - JOUR
T1 - Identification and quantification of free, conjugate and total phenolic compounds in leaves of 20 sweetpotato cultivars by HPLC-DAD and HPLC-ESI-MS/MS.
AU - Luo,Chunying,
AU - Wang,Xixi,
AU - Gao,Ge,
AU - Wang,Lian,
AU - Li,Yongxin,
AU - Sun,Chengjun,
Y1 - 2013/05/15/
PY - 2012/10/10/received
PY - 2013/04/16/revised
PY - 2013/05/05/accepted
PY - 2013/7/23/entrez
PY - 2013/7/23/pubmed
PY - 2014/2/1/medline
KW - 3,4,5-tri-O-caffeoylquinic acid
KW - 3,4,5-triCQA
KW - 3,4-di-O-caffeoylquinic acid
KW - 3,4-diCQA
KW - 3,5-di-O-caffeoylquinic acid
KW - 3,5-diCQA
KW - 3-CQA
KW - 3-O-caffeoylquinic acid
KW - 4,5-di-O-caffeoylquinic acid
KW - 4,5-diCQA
KW - 4-CQA
KW - 4-O-caffeoylquinic acid
KW - 5-CQA
KW - 5-O-caffeoylquinic acid
KW - Acidic hydrolysis
KW - Basic hydrolysis
KW - CA
KW - CFQA
KW - CQAs
KW - Caffeoylquinic acid methyl and ethyl esters
KW - ChA
KW - ChAs
KW - EDTA–Na(2)
KW - FA
KW - FQA
KW - Flavonoids
KW - HBAs
KW - HCAs
KW - Hydroxycinnamic acid methyl and ethyl esters
KW - Phenolic acids
KW - QA
KW - SF
KW - Sweetpotato (Ipomoea batatas L.) leaves
KW - TBHQ
KW - caffeic acid
KW - caffeoyl-feruloylquinic acid
KW - caffeoylquinic acids
KW - chlorogenic acid
KW - chlorogenic acids
KW - ethylenediaminetetraacetic acid disodium
KW - ferulic acid
KW - feruloylquinic acid
KW - hydroxybenzoic acids
KW - hydroxycinnamic acids
KW - p-CoA
KW - p-coumaric acid
KW - quinic acid
KW - sinapic acid
KW - tert-butylhydroquinone
SP - 2697
EP - 706
JF - Food chemistry
JO - Food Chem
VL - 141
IS - 3
N2 - The study systematically investigated free, conjugate and total phenolics (phenolic acids and flavonoids) in leaves of 19 Chinese and one American sweetpotato cultivars grown in China. Three extraction/hydrolytic methods (direct extraction and acidic and basic hydrolysis) for sample preparation were employed to obtain different forms of phenolics. Twenty-nine phenolics were separated and identified using HPLC-DAD and HPLC-ESI-MS/MS. Three quercetin glycosides were characterised for the first time from this plant. Contents of the principal phenolics identified were determined by the HPLC-DAD procedure, which was validated in terms of linearity, precision, accuracy and limit of detection and quantification. Moreover, to the best of our knowledge, it is the first to reveal and demonstrate artifacts of esterification during acidic methanolic and ethanolic hydrolysis, and chromatographic behaviours, UV spectra and MS data of 20 hydroxycinnamic acid methyl and ethyl esters were obtained using acidic methanolic and ethanolic hydrolysis.
SN - 1873-7072
UR - https://www.unboundmedicine.com/medline/citation/23871013/Identification_and_quantification_of_free_conjugate_and_total_phenolic_compounds_in_leaves_of_20_sweetpotato_cultivars_by_HPLC_DAD_and_HPLC_ESI_MS/MS_
L2 - https://linkinghub.elsevier.com/retrieve/pii/S0308-8146(13)00592-X
DB - PRIME
DP - Unbound Medicine
ER -