Antioxidant Activity of Pyrus serotina Fruit in Different Cultivars and Parts

Jin, Young Ook; Song, Won Seob

doi:10.7732/kjpr.2012.25.4.498

Cited by 9 publications

(2 citation statements)

References 13 publications

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“…Efficient substance of pomegranate for antioxidation was observed in the peels (Roh et al, 2005), and in a study on the antioxidant activity of Codonopsis lanceolate, the highest antioxidant activity was observed in the peels (Kang, 2009). However, according to the reports of Park et al (2007) on the measurement of the antioxidant activity observed in ethanol extracts from Korean pears varieties, the antioxidant activityfrom whole fruits and flesh + peel were higher than those measured from the peel, which are different from the results reported by Jin and Song (2012), where the antioxidant activity in the peel was higher than in the flesh. The other study showed that free radical scavenging activity increased as the concentration of the extract from litchi peels increased (Jeong et al, 2010), and free radical scavenging activity of the extracts from Campbell grape seeds and peels increased along with the extract temperature .…”

Section: Discussioncontrasting

confidence: 56%

Comparative Study of Antioxidant Activity of Apple and Pear Peel

Kim¹,

Roh²

2013

Korean Journal of Plant Resources

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-Apple and pear are popular fruits consumed in Korea and are common fruit in daily diet. In order to compare the antioxidant activity of the apple and pear peels, total polyphenol contents, total flavonoid contents, ABTS + free radical scavenging activity, and DPPH free radical scavenging activity were measured from hot water, ethanol, and methanol extracts of the two fruit peels. The total polyphenol and flavonoid contents were highest in 95% methanol extracts of the apple peelsand 70% ethanol extract of the pear peels, respectively. Total polyphenol contents of the pear peels were higher than that of apple peels, and total flavonoid contents of the apple peels were higher than that of pear peels. The apple and pear peels had the highest ABTS +· and DPPH free radical scavenging activity in 95% methanol extracts and 70% ethanol extracts, respectively. ABTS +· and DPPH free radical scavenging activity of pear peels was higher than that of apple peels, and the DPPH free radical scavenging activity of apple and pear peels were detected in hot water, 95% methanol, and 70% ethanol extracts, respectively. Ascorbic acid, a synthetic antioxidant used as positive control, had significantly higher scavenging activity than the apple and pear peels. In conclusion, the apple and pear peelshave great potential as natural antioxidants. Therefore, above results should be considered to provide the possibility for the development of high functional antioxidants.

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Section: Discussioncontrasting

confidence: 56%

Comparative Study of Antioxidant Activity of Apple and Pear Peel

Kim¹,

Roh²

2013

Korean Journal of Plant Resources

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“…The difference in composition of persimmon fruit must be due to the cultivar variation (Moghaddama et al, 2013;Mratinic et al, 2011;Jin and Song, 2012). Vitamin C content in the cultivar Hachiya grown in Turkey was 12 ㎎ 100/g of fruit (Celik and Ercisli, 2008).…”

Section: Discussionmentioning

confidence: 99%

Quality Characteristics of ‘Dongchul’ Persimmon (Diospyros kaki Thunb.) Fruit Grown in Gangwondo, Korea

Kim¹,

Dhungana²,

Chae³

et al. 2016

Korean Journal of Plant Resources

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-Persimmon has long been established as one of the major fruits in Korea. The southern parts of Korea were traditionally the pocket areas for good persimmon production; however, rising temperatures have gradually rendered the southern regions unsuitable for successful harvest. Ecology of fruit growing areas affects the productivity of various types of crops, including fruit trees such as persimmon. The quality characteristics of the fruit of persimmon cv. Dongchul grown in Gangwondo, which lies in the northern part of South Korea, were investigated. Different physicochemical, nutritional, and antioxidant properties of fruit were evaluated to assess the locational effect on the quality of persimmon fruits grown in Gangwondo. The results of this study showed that persimmon cv. Dongchul grown in Gangwondo maintains many of the physicochemical (4.33% crude protein and 4.32% crude fiber), nutritional (total mineral content: 461.51 and vitamin C content: 15.28 ㎎/100 g), and antioxidant properties (polyphenol content: 633.1 ㎎ gallic acid equivalent/100 g) those are found in other three commercial cultivars 'Daebong', 'Kyengsan Bansi', and 'Sangju Doongsi' grown in Korea. Overall results of this study imply that 'Dongchul' cultivar of persimmon could commercially be grown in Kangwondo, Korea.

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Effects of Complex Carbohydrase Treatment on Physiological Activities of Pear Peel and Core

Lee¹,

Park²,

Jang³

et al. 2014

Journal of the Korean Society of Food Science and Nutrition

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The effects of treatment with various complex carbohydrases such as Pectinex, Celluclast, Viscozyme, and Ultraflo on the physiochemical properties, polyphenol extraction yields and antioxidant activities of pear peel and pear core were investigated. When pear peel and pear core were treated with complex carbohydrases, the soluble solid content of peel increased, whereas it did not change significantly in the case of pear core. When pear peel and pear core were treated with Pectinex, significant improvement of soluble solid content was observed along with the highest extraction yield of reducing sugar content. Total sugar content increased in most of the enzyme treatment groups. In the case of pear peel, the Viscozyme treatment group showed the highest total polyphenol contents, total flavonoid contents, DPPH radical scavenging activity, ABTS radical scavenging activity, and SOD-like activity. When the flesh and core of pear were treated with Celluclast, total polyphenol contents increased. All enzyme treatment groups except for the Ultraflo treatment group showed increases in total flavonoid contents. With regard to pear flesh, the Celluclast group showed the highest DPPH radical scavenging activity. When pear core was treated with the four complex carbohydrases, DPPH radical scavenging activity and ABTS radical scavenging activity did not increase significantly. However, the SOD-like activity of all enzyme treatment groups significantly increased. Consequently, dry matter and soluble solid contents, polyphenol content, and antioxidant activity of pear peel and core could be improved by complex carbohydrase treatment.

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Antioxidant Activity of Pyrus serotina Fruit in Different Cultivars and Parts

Cited by 9 publications

References 13 publications

Comparative Study of Antioxidant Activity of Apple and Pear Peel

Comparative Study of Antioxidant Activity of Apple and Pear Peel

Quality Characteristics of ‘Dongchul’ Persimmon (Diospyros kaki Thunb.) Fruit Grown in Gangwondo, Korea

Effects of Complex Carbohydrase Treatment on Physiological Activities of Pear Peel and Core

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