Structural diversity and antioxidant activity of condensed tannins fractionated from mangosteen pericarp

Zhou, Haichao; Lin, Yang; Wei, Shudong; Tam, N.F.Y.

doi:10.1016/j.foodchem.2011.06.036

Cited by 87 publications

(93 citation statements)

References 25 publications

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“…Thiolysis and pholoroglucinolysis depends on cleavage through auto-oxidation of the interflavan bond in the presence of strong acid and subsequent reaction of extension units with a nucleophile (Karonen et al, 2007). Thiolysis operates under the assumptions that the cleavage of the interflavan bond is complete, the reaction follows a 1:1 stoichiometry (Karonen et al, 2007), and flavan-3-ol benzylthioethers have the same molar absorptivities as their respective flavan-3-ol monomers (Zhou, Lin, Wei, & Tam, 2011). Therefore the application of thiolysis and pholoroglucinolysis for estimating DP and presence of A-type interflavan bonds may be inaccurate when these assumptions are incorrect.…”

Section: Discussionmentioning

confidence: 99%

Deconvolution of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry isotope patterns to determine ratios of A-type to B-type interflavan bonds in cranberry proanthocyanidins

et al. 2012

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Section: Discussionmentioning

confidence: 99%

Deconvolution of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry isotope patterns to determine ratios of A-type to B-type interflavan bonds in cranberry proanthocyanidins

et al. 2012

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“…Many studies have been conducted to isolate and identify the main bioactive substances of mangosteen peel by several methods such as gas chromatography with mass spectrometry (GC-MS) (Zadernowski et al 2009), high performance liquid chromatography with electrospray ionization mass spectrometry (HPLC-ESI-MS) (Zarena and Udaya Sankar 2011;Zarena and Udaya Sankar 2012;Zhou et al 2011) and coupling centrifugal partition chromatography with ESI-MS (CPC-ESI-MS) (Destandau et al 2009). The chemical compositions of mangosteen peel have been reported to contain complex phenolic compounds.…”

Section: Main Bioactive Substances Of Mangosteen Peelmentioning

confidence: 99%

In vitro antioxidant properties of mangosteen peel extract

2012

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The growing interest in the replacement of synthetic food antioxidants by natural ones has fostered research on the screening of plant-derived raw materials for identifying new antioxidants. The special attention of research today is focused on inexpensive or residual sources from agricultural industries. Fruit peels as sources of powerful natural antioxidants are often the waste parts of various fruits from consumption and food industry. Among the fruit peels, mangosteen peel is an important source of natural phenolic antioxidants. The mangosteen peel contains various bioactive substances, i.e., phenolic acids and flavonoids, which possess biological and medicinal properties, especially antioxidant properties. The aim of this review, after presenting analytical techniques for determining in vitro antioxidant activity of mangosteen peel extract, is to summarize available data on the factors affecting antioxidant activity of mangosteen peel extract. In addition, the potential antioxidant activity of mangosteen peel extract, the bioactive compounds identified from mangosteen peel extract and their antioxidant activity are presented. Potential applications of the mangosteen peel extract in food, pharmaceutical and cosmetic products are also discussed.

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“…These compounds have many proven properties such as antioxidant capacity, antibacterial, anti-fungal etc. [2,3]. The tannins content in the mangosteen peel represents about 14.1 % [2], in which procyanidin, propelargonidin, and prodelphinidin are predominant.…”

Section: Introductionmentioning

confidence: 99%

Study on Extraction of Tannins From the Garcinia Mangostana Linn Peel in Vietnam

Hien¹

2018

JST

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Garcinia mangostana Linn is known as the "queen of fruit" in Vietnam, which is grown in the provinces of the Mekong Delta and the South Eastern area. Many researches showed that the pericarp of this fruit has many active components, such as xanthones, anthocyanins, tannins, etc. Tannin content of Gacinia mangosteen Linn peel of four regions (Can Tho, Tra Vinh, Bình Duong and Vinh Long provinces) in Vietnam was investigated. It was 13.80% (Vinh Long), 13.91% (Can Tho), 14.15% (Binh Duong), 14.50 % (Tra Vinh). This study focused on the extraction of the tannins compound from the Garcinia mangostana Linn for applications in the food industry, especially in the wine-producing industry.The pericarp of mangosteen was treated with Termamyl SC and Pectinex Ultra SP-L enzymes, then mixed with 60% ethanol at the ratio of 1/20 (material /solvent) and heating for 120 minutes at 60°C. The extracts then were obtained after centrifugation at 5000 rpm for 10 minutes and vacuum filtered. The extraction efficiency was more than 90%, higher than without enzyme pretreatment (87.35%).

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Structural diversity and antioxidant activity of condensed tannins fractionated from mangosteen pericarp

Cited by 87 publications

References 25 publications

Deconvolution of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry isotope patterns to determine ratios of A-type to B-type interflavan bonds in cranberry proanthocyanidins

Deconvolution of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry isotope patterns to determine ratios of A-type to B-type interflavan bonds in cranberry proanthocyanidins

In vitro antioxidant properties of mangosteen peel extract

Study on Extraction of Tannins From the Garcinia Mangostana Linn Peel in Vietnam

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