Identification of phenolics in Chinese toon and analysis of their content changes during storage

Yang, Ying; Wang, Jun; Xing, Z.; Dai, Yunqing; Chen, Min

doi:10.1016/j.foodchem.2011.03.071

Cited by 27 publications

(25 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Porém, esse efeito foi mais pronunciado em amoras 'Guarani'. A diminuição do teor de CFT durante o armazenamento pode ter ocorrido em consequência de sua oxidação, que reduziu sua concentração no fruto (Yang et al, 2011). A temperaturas mais baixas, pode haver produção de espécies reativas de oxigênios, resultando em maior consumo de compostos fenólicos (Junmatong et al, 2015).…”

Section: Methodsunclassified

Qualidade, compostos fenólicos e atividade antioxidante de amoras-pretas 'Tupy' e 'Guarani' armazenadas a diferentes temperaturas

Soethe

Steffens

Amarante

et al. 2016

Pesq. agropec. bras.

View full text Add to dashboard Cite

Resumo -O objetivo deste trabalho foi avaliar o efeito da temperatura de armazenamento sobre a manutenção da qualidade, o teor de compostos fenólicos e a atividade antioxidante de amoras-pretas (Rubus sp.) 'Tupy' e 'Guarani'. Os frutos foram armazenados a 0, 5, 10 e 15°C. Após cinco dias de armazenamento, as amoras-pretas foram avaliadas quanto aos seguintes parâmetros: cor da epiderme, taxa respiratória, perda de massa, força para compressão, acidez titulável (AT), sólidos solúveis (SS), relação SS/AT, podridões, compostos fenólicos totais (CFT) e atividade antioxidante (AAT). O aumento da temperatura de armazenamento causou, em ambas as cultivares, o aumento da taxa respiratória, da perda de massa e da incidência de podridões, bem como redução dos teores de SS e AT, especialmente a partir de 5ºC. Não houve efeito da temperatura sobre a coloração em 'Tupy'. Em amoras 'Guarani', houve redução de croma e de ângulo hue, com o aumento da temperatura. A força para compressão, em ambas as cultivares, aumentou entre as temperaturas de 0 e 5ºC. CFT e AAT aumentaram com o incremento da temperatura em ambas as cultivares. O armazenamento de frutos de ambas as cultivares a 5ºC proporciona frutos mais firmes e maior AT, além de permitir o incremento de CFT e AAT, sem comprometer o sabor e aspecto visual do fruto.Termos para indexação: Rubus, alimento funcional, conservação, pequenos frutos. Quality, phenolic compounds, and antioxidant activity of 'Tupy' and 'Guarani' blackberries stored at different temperaturesAbstract -The objective of this work was to evaluate the effect of storage temperature on the quality maintenance, content of phenolic compounds, and antioxidant activity of 'Tupy' and 'Guarani' blackberry (Rubus sp.) fruit. Fruit were stored at 0, 5, 10, and 15°C. After five days of storage, fruit were evaluated for the following parameters: skin color, respiratory rate, weight loss, force to compression, titratable acidity (TA), soluble solids content (SSC), SSC/TA ratio, incidence of decay, total phenolic compounds (TPC), and total antioxidant activity (TAA). In both cultivars, the temperature increase caused boosting of respiratory rate, weight loss, and incidence of decay, as well as reduction in SSC and TA, especially at temperatures over 5°C. There was no effect of temperature on skin color of 'Tupy'. In 'Guarani' blackberries, chroma and hue angle decreased with temperature. Fruit force to compression, in both cultivars, augmented by temperature increasing between 0 and 5°C. Values of TPC and TAA augmented with increasing of temperature in both cultivars. Fruit storage at 5ºC for both cultivars yields firmer fruit and higher TA, while allowing the increase of TPC and TAA without impairing fruit taste and visual appearance.

show abstract

Section: Methodsunclassified

Qualidade, compostos fenólicos e atividade antioxidante de amoras-pretas 'Tupy' e 'Guarani' armazenadas a diferentes temperaturas

Soethe

Steffens

Amarante

et al. 2016

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Its young leaves and shoots are favored as a popular spring tree vegetable in China. Toona sinensis is rich in bioactive compounds including flavonoids, alkaloids, terpenes, anthraquinones, and phenolics, which confer many health benefits, such as detoxification and anti-inflammation, anticancer, antidiabetes, antioxidative, and antithrombotic properties [1][2][3][4]. Tender Chinese toon is a seasonal vegetable which is extremely perishable, with high water content and a vigorous respiratory rate after harvest.…”

Section: Introductionmentioning

confidence: 99%

Effect of Package Film on the Quality of Postharvest Chinese Toon Tender Shoots Storage

Zhu

Gao

2017

Journal of Food Quality

View full text Add to dashboard Cite

The young leaves and shoots of the Toona sinensis (A. Juss.) Roem. tree, called Chinese toon, are commonly eaten as a vegetable in China. This study was conducted to develop a modified atmosphere packaging (MAP) system for Chinese toon tender shoots and to evaluate the effect of film oxygen transmission rate (OTR) on package atmospheres and consequent product quality changes during storage. Fresh precooled Chinese toon tender shoots (25 ± 0.5 g each) were packaged in sealed 10 cm × 15 cm polyethylene bags prepared with films of OTRs of 8.0, 11.6, 16.6, 21.4, or 29.5 pmol s −1 m −2 Pa −1 and stored at 4 ± 0.5 ∘ C for 25 days. Evaluations included package atmospheres, tissue electrolyte leakage, color, and sensory attributes (overall visual quality, off-odor, texture, and marketability). Results indicated that the OTR of the package film significantly ( < 0.05) affected package headspace gas composition, * , hue angles, product quality, and shelf-life, under the tested package configurations and storage conditions. Packages with film OTR of 21.4 pmol s −1 m −2 Pa −1 attained stable O 2 (8.4-10.0 kPa) and CO 2 (2.2-3.0 kPa) levels by day 10, which were maintained through the end of storage; products stored in these packages maintained freshness with high overall quality scores.

show abstract

“…Any opinions and views expressed in this publication are the opinions and views of the authors, and are not the views of or endorsed by Taylor [1][2] Since its tender leaves have a unique and favorable flavor and is rich in substance of healthy benefits, this functional food has become very popular as a dietary and culinary ingredient. Consequently, T. sinensis Roemer is widely cultivated over China mainland nowadays, [3][4] and the vegetable harvested from two regions, Ximou (Shandong Province) and Jiaozuo (Henan Province), is more renowned and welcomed compared to other production sites. [5] Moreover, besides local consumption, harvest from these two regions is also exported largely to Hong Kong, Taiwan, Japan, Korea, and Russia.…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

Comparative Study on Two Antioxidant Flavanol-3-O-α-L- Rhamnosides in the Leaves of Toona sinensis (Chinese Toon) from Different Production Sites by HPLC-UV

Yang

et al. 2014

Journal of Liquid Chromatography & Related Technologies

View full text Add to dashboard Cite

Two antioxidant flavonol glycosides, quercetin-3-O-a-L-rhamnoside (1) and kaempferol-3-O-a-L-rhamnoside (2), were isolated from the leaves of Toona sinensis by column liquid chromatography. For the first time, a convenient RP-HPLC-UV method for the simultaneous quantitation of these two glycosides was developed and validated for linearity, precision, accuracy, stability, and repeatability. This newly established method was used to compare the quantity and content ratio of these two rhamnosides present in the raw material harvested from different production sites. It was found that the content of 1 as well as the ratio of 1 to 2 in the material harvested from renowned regions is higher than the other. The data also revealed that rhamnoside 2 is lesser and thus supporting our previous hypothesis that besides the content of bioactive compounds, the content ratio is likely to be another crucial root cause leading to the difference in quality and health benefits of the natural product.

show abstract

Identification of phenolics in Chinese toon and analysis of their content changes during storage

Cited by 27 publications

References 16 publications

Qualidade, compostos fenólicos e atividade antioxidante de amoras-pretas 'Tupy' e 'Guarani' armazenadas a diferentes temperaturas

Qualidade, compostos fenólicos e atividade antioxidante de amoras-pretas 'Tupy' e 'Guarani' armazenadas a diferentes temperaturas

Effect of Package Film on the Quality of Postharvest Chinese Toon Tender Shoots Storage

Comparative Study on Two Antioxidant Flavanol-3-O-α-L- Rhamnosides in the Leaves of Toona sinensis (Chinese Toon) from Different Production Sites by HPLC-UV

Contact Info

Product

Resources

About