Stoichiometric and Kinetic Studies of Phenolic Antioxidants from Andean Purple Corn and Red-Fleshed Sweetpotato
Publication type: Journal Article
Publication date: 2003-04-18
scimago Q1
wos Q1
SJR: 1.215
CiteScore: 9.3
Impact factor: 6.2
ISSN: 00218561, 15205118
PubMed ID:
12744660
General Chemistry
General Agricultural and Biological Sciences
Abstract
Stoichiometric and kinetic values of phenolics against DPPH (2,2-diphenyl-1-picrylhydrazyl) were determined for Andean purple corn (Zea mays L.) and red sweetpotato (Ipomoea batatas). Both crops had higher antioxidant capacity and antiradical kinetics than blueberries and higher or similar anthocyanin and phenolic contents. The second-order rate constant (k(2)) was 1.56, 1.12, 0.57, and 0.26 (mg antiradical/mL)(-1) s(-1) for red sweetpotato, Trolox, purple corn, and blueberry, respectively. On the molar basis of active hydroxyl groups, k(2)' showed the same order as for k(2). Corn cob and sweetpotato endodermis contributed the most in phenolic compounds and antioxidant capacity. Both crops studied can be considered as excellent novel sources of natural antioxidants for the functional food and dietary supplement markets.
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Citations from 2025:
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Cevallos Casals B. A., Cisneros-Zevallos L. Stoichiometric and Kinetic Studies of Phenolic Antioxidants from Andean Purple Corn and Red-Fleshed Sweetpotato // Journal of Agricultural and Food Chemistry. 2003. Vol. 51. No. 11. pp. 3313-3319.
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Cevallos Casals B. A., Cisneros-Zevallos L. Stoichiometric and Kinetic Studies of Phenolic Antioxidants from Andean Purple Corn and Red-Fleshed Sweetpotato // Journal of Agricultural and Food Chemistry. 2003. Vol. 51. No. 11. pp. 3313-3319.
Cite this
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TY - JOUR
DO - 10.1021/jf034109c
UR - https://doi.org/10.1021/jf034109c
TI - Stoichiometric and Kinetic Studies of Phenolic Antioxidants from Andean Purple Corn and Red-Fleshed Sweetpotato
T2 - Journal of Agricultural and Food Chemistry
AU - Cevallos Casals, Bolívar A
AU - Cisneros-Zevallos, L.
PY - 2003
DA - 2003/04/18
PB - American Chemical Society (ACS)
SP - 3313-3319
IS - 11
VL - 51
PMID - 12744660
SN - 0021-8561
SN - 1520-5118
ER -
Cite this
BibTex (up to 50 authors)
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@article{2003_Cevallos Casals,
author = {Bolívar A Cevallos Casals and L. Cisneros-Zevallos},
title = {Stoichiometric and Kinetic Studies of Phenolic Antioxidants from Andean Purple Corn and Red-Fleshed Sweetpotato},
journal = {Journal of Agricultural and Food Chemistry},
year = {2003},
volume = {51},
publisher = {American Chemical Society (ACS)},
month = {apr},
url = {https://doi.org/10.1021/jf034109c},
number = {11},
pages = {3313--3319},
doi = {10.1021/jf034109c}
}
Cite this
MLA
Copy
Cevallos Casals, Bolívar A., and L. Cisneros-Zevallos. “Stoichiometric and Kinetic Studies of Phenolic Antioxidants from Andean Purple Corn and Red-Fleshed Sweetpotato.” Journal of Agricultural and Food Chemistry, vol. 51, no. 11, Apr. 2003, pp. 3313-3319. https://doi.org/10.1021/jf034109c.