Identification, characterization, isolation and activity against Escherichia coli of quince (Cydonia oblonga) fruit polyphenols

review of nutritional value and putative health-effects of quince (Cydonia oblonga Mill.) fruit

“…It seems that chlorogenic acid acts in synergism with other components of the extracts to exhibit total antimicrobial activities. Thirty-four polyphenols were detected by Karar et al (2013), nine of which were not reported previously in quince. The crude extract of quince fruit polyphenols showed antibacterial activity against the Gram-negative bacterium Escherichia coli.…”

Preliminary evaluation of quince (Cydonia oblonga Mill.) fruit as extraction source of antioxidant phytoconstituents for nutraceutical and functional food applications

“…There is an increasing interest in the development of new nutraceutical ingredients using fruit extracts, and in this regard quince can be investigated as a potential new starting material. This fruit is widely available and is a low‐cost dietary source of phytoconstituents useful for health‐promoting effects . Worldwide, quince plants are cultivated in the temperate climatic zone, with a total extension of about 43 000 ha and a production of 335 000 tons.…”

“…Nowadays, the fruits are commonly sold to the industry for the production of mustard, alimentary preserves, jelly, liquors and distilled products, and thus only a small portion is consumed as a fresh fruit. Recent pharmacological investigations pointed out that the fruit of quince exhibits antioxidant, antimicrobial, antiviral, antihaemolytic, anti‐inflammatory, antiulcer and anticancer activities, indicating potential interest for pharmaceutical and nutraceutical applications …”

“…This fruit is widely available and is a low-cost dietary source of phytoconstituents useful for health-promoting effects. 2,[9][10][11][12][13][14][15] Worldwide, quince plants are cultivated in the temperate climatic zone, with a total extension of about 43 000 ha and a production of 335 000 tons. Turkey is the largest producer, with about 25% of worldwide production.…”

“…Recent pharmacological investigations pointed out that the fruit of quince exhibits antioxidant, antimicrobial, antiviral, antihaemolytic, anti-inflammatory, antiulcer and anticancer activities, indicating potential interest for pharmaceutical and nutraceutical applications. 2,10,11,[14][15][16][17][18][19][20] A large number of polyphenolic constituents were identified in quince fruit; in particular, flavan-3-ols such as as epicatechin, procyanidin B2, eight hydroxycinnamates, derivatives of caffeoylquinic acid (CQA) and coumaroylquinic acid, kaempferol and quercetin derivatives. 2,18,21 The analysis of the phenolic profile indicated that derivatives of quercetin and kaempferol were minor components of quince fruit, while procyanidins and chlorogenic acid (CGA) derivatives constituted the majority of the polyphenolic fraction.…”