Preparation and properties of new antioxidants with higher MW

Pan, Jiang-Qing; Liu, N.C.; Lau, Weber Kam On

doi:10.1016/s0141-3910(97)00274-7

Cited by 30 publications

(6 citation statements)

References 10 publications

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“…Polymeric antioxidants are a particular class of systems characterized by higher stability and slower degradation rate than compounds with low molecular weight , . They could be applied in those fields in which the employment of a single molecule with antioxidant activity is prohibitive ; for example, they can be used in hemodialysis application, in particular, by their introduction in dialysis membranes.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Methacrylic−Ferulic Acid Copolymer with Antioxidant Properties by Single-Step Free Radical Polymerization

Puoci

Iemma

Curcio

et al. 2008

J. Agric. Food Chem.

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A novel, simple, and cheap method to synthesize antioxidant methacrylic-ferulic acid copolymer (PMAA-FA) by free radical polymerization was developed by employing a hydrogen peroxide-ascorbic acid pair to produce hydroxyl radicals acting as radical initiators. FT-IR spectra were performed to verify the insertion of ferulic acid into the polymeric chain, and the antioxidant activity of PMAA-FA was compared to that of a control polymer synthesized in the absence of antioxidant molecule. Good antioxidant activity was demonstrated by obtained materials, showing the efficiency of the polymerization method. This material could be useful in the pharmaceutical field and in the food industry (food packaging).

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Section: Introductionmentioning

confidence: 99%

Synthesis of Methacrylic−Ferulic Acid Copolymer with Antioxidant Properties by Single-Step Free Radical Polymerization

Puoci

Iemma

Curcio

et al. 2008

J. Agric. Food Chem.

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“…(Moss, 2002). Antioksidan dapat digunakan di berbagai macam bidang, seperti bidang pangan dan industri famasi, industri tekstil (Bangee et al, 1995), perminyakan (Pan et al, 1998) dan industri karet (Pushpa et al, 1995…”

Section: Latar Belakangunclassified

Ekstraksi dan Uji Stabilitas Zat Warna Alami dari Bayam Merah (Alternanthera amoena Voss)

Khairuddin

Baciang

Indriani

et al. 2020

Kovalen

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Research on the extraction and stability test of natural dye from red spinach (Alternanthera amoena Voss) has been carried out. This study aims to determine the effect of pH and length of sun exposure on the stability of the dye from red spinach. Extraction using the maceration method with ethanol solvent and measurement using a UV-Vis spectrophotometer. Stability testing is carried out at pH 2-5 and sun exposure for 1-4 hours using a dark and light container. The results obtained, at pH 2 and pH 3, anthocyanins were more stable, compared to pH 4 and 5 which had greater color degradation. In exposure to sunlight, dark containers with a degradation percentage of 31.70% were better than clear containers with a percentage of 48.78%. Keywords: Anthocyanin, red spinach, natural dyes stability.

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“…There are many methods to synthesize stabilizers. Isocyanation is a useful method (7,(36)(37)(38)(39)(40)(41)(42). Effective antioxidants of higher molecular weight can be synthesized by direct isocyanation of 2,6-di-teryt-butyl-4-hydroxy methyl phenol (DBHMP) with isocyanate (37) …”

Section: Synthesis Of New Stabilizersmentioning

confidence: 99%