Gallic Acid-Laminarin Conjugate Is a Better Antioxidant than Sulfated or Carboxylated Laminarin.
Gallic Acid-Laminarin Conjugate Is a Better Antioxidant than Sulfated or Carboxylated Laminarin.
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没食子酸-海带多糖结合物是一种比硫酸盐化或羧化海带多糖更好的抗氧化剂。
DOI:
10.3390/antiox9121192
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发表时间:
2020-11-27
期刊:
影响因子:
--
通讯作者:
Rocha HAO
中科院分区:
文献类型:
--
作者:
Fernandes-Negreiros MM;Batista LANC;Silva Viana RL;Araujo Sabry D;Paiva AAO;Paiva WS;Machado RIA;Sousa Junior FL;de Lima Pontes D;Vitoriano JO;Alves Junior C;Lanzi Sassaki G;Rocha HAO
A 12.4 kDa laminarin (LM) composed of β(1→3)-glucan with β(1→6)-branches was extracted from brown seaweed Lobophora variegata and modified via carboxylation using dielectric barrier discharge (LMC), conjugation with gallic acid (LMG), and sulfation (LMS). Analyses of the chemical composition of LMC, LMG, and LMS yielded 11.7% carboxyl groups, 1.5% gallic acid, and 1.4% sulfate content, respectively. Antioxidant activities of native and modified laminarins were assessed using six different in vitro methods. Sulfation stopped the antioxidant activities of LM. On the other hand, carboxylation improved cooper chelation (1.2 times). LMG was found to be a more efficient antioxidant agent than LM in terms of copper chelation (1.3 times), reducing power (1.3 times), and total antioxidant capacity (80 times). Gallic acid conjugation was further confirmed using Fourier transform infrared spectroscopy (FT-IR) and one- and two-dimensional NMR spectroscopy analyses. LMG also did not induce cell death or affect the cell cycle of Madin–Darby canine kidney (MDCK) cells. On the contrary, LMG protected MDCK cells from H2O2-induced oxidative damage. Taken together, these results show that LMG has the potent antioxidant capacity, and, therefore, potential applications in pharmacological and functional food products.
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影响因子:
3.7
作者:
López-Martínez LM;Santacruz-Ortega H;Navarro RE;Sotelo-Mundo RR;González-Aguilar GA
通讯作者:
González-Aguilar GA
影响因子:
5.4
作者:
de Jesus Raposo MF;de Morais AM;de Morais RM
通讯作者:
de Morais RM
影响因子:
7
作者:
Kwon, Da Hye;Cha, Hee-Jae;Choi, Yung Hyun
通讯作者:
Choi, Yung Hyun
影响因子:
4.1
作者:
Luis Ordonez, Jose;Pereira-Caro, Gema;Manuel Moreno-Rojas, Jose
通讯作者:
Manuel Moreno-Rojas, Jose
影响因子:
6.1
作者:
Curcio, Manuela;Puoci, Francesco;Picci, Nevio
通讯作者:
Picci, Nevio