Antioxidant and radioprotective properties of commercially grown litchi (Litchi chinensis) from India

Saxena, Sudhanshu; Hajare, Sachin N.; More, Varsha; Kumar, Sanjeev; Wadhawan, Surbhi; Mishra, Beena; Parte, Madan Narayan; Gautam, Satyendra; Sharma, Arun

doi:10.1016/j.foodchem.2010.10.051

Cited by 39 publications

(19 citation statements)

References 29 publications

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“…Incidentally these three extracts of M. zapota had the highest phenolic content which again suggests that there is a direct correlation between phenol content and antioxidant activity. This is in accordance with results of others [23,55,56] .…”

Section: Discussionsupporting

confidence: 94%

Assessment of effect of hydroalcoholic and decoction methods on extraction of antioxidants from selected Indian medicinal plants

Kaneria

Kanani

Chanda

2012

Asian Pacific Journal of Tropical Biomedicine

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Section: Discussionsupporting

confidence: 94%

Assessment of effect of hydroalcoholic and decoction methods on extraction of antioxidants from selected Indian medicinal plants

Kaneria

Kanani

Chanda

2012

Asian Pacific Journal of Tropical Biomedicine

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“…The formation of open circular form of plasmid DNA from supercoiled plasmid DNA is an indication of single stranded breaks (SSBs), whereas the formation of linear form is indicative of double stranded breaks (DSBs) (Saxena et al 2011). In the present study, mango juice offered protective action against radiation induced DNA damage.…”

Section: Sensory Evaluationmentioning

confidence: 61%

“…In the present study, mango juice offered protective action against radiation induced DNA damage. Similarly litchi juice was earlier shown to have a protective role against DNA damage (Saxena et al 2011). Aqueous extracts of chili, black pepper, and turmeric (Sharma et al 2000) have been reported to have similar protective effects.…”

Section: Sensory Evaluationmentioning

confidence: 91%

“…The homogenate was treated with pectinase (Bio-Tropicase, Biocon, India) enzyme to reduce the viscosity and facilitate juice extraction and then subsequently filtered through two layered cheese cloth. The juice obtained in this manner was centrifuged at 10,000g for 10 min at ambient temperature, to remove any suspended particulate matter that could affect the antioxidant and radioprotective assays by interfering with the spectrophotometric measurements, as well as the DNA gel electrophoresis, respectively (Saxena et al 2011). The supernatant obtained was designated as clear juice, which was grouped in to four lots according to the dose of irradiation received 0 (control) 1, 3 and 5 kGy in 500 mL containers each.…”

Section: Mango Fruit Processingmentioning

confidence: 99%

“…The in vitro radio protective effect of mango juice was evaluated using the method described earlier by Saxena et al (2011). In brief, 15 μL aliquot of clear juice was mixed with 15 μL of pUC19 plasmid DNA (~400 ng) (Bangalore Genei, India) in a sterile 1.5 mL eppendorf tube.…”

Section: Sensory Evaluationmentioning

confidence: 99%

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Enhancing antioxidant activity, microbial and sensory quality of mango (Mangifera indica L.) juice by γ-irradiation and its in vitro radioprotective potential

et al. 2014

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Gamma irradiation is an effective method currently being used for microbial decontamination and insect disinfestations of foods. In the present study, mango (Mangifera indica L.) juice was irradiated at doses of 0, 1.0, 3.0 and 5.0 kGy and microbial load, total polyphenols, flavonoids, ascorbic acid content, antioxidant activities, colour and sensory properties were evaluated immediately after irradiation and also during storage. Microbiological assay of the fresh and stored mango juice showed better quality after γ-irradiation. The total polyphenols and flavonoids were significantly (p<0.05) increased while the ascorbic acid content decreased with the irradiation doses applied. As a result of γ-irradiation, a significant increment in gallic, syringic and chlorogenic acids and a significant reduction in ferulic and synapic acids were noted when analyzed by HPLC. In vitro antioxidant potentials were measured using DPPH, FRAP and NO scavenging assays; the results showed significant enhancement in the activities after irradiation, that correlated well with the increase in phenolic and flavonoid content. γ-irradiation improved the colour of mango juice without any adverse changes in the sensory qualities. Significant in vitro plasmid DNA protection was observed in the presence of mango juice against radiation induced damage, even at the dose of 5 kGy. This study confirmed the potential of γ-irradiation as a method for microbial decontamination and improving the quality of the mango juice without compromising on the sensory attributes.

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Litchi postharvest physiology and handling

Huang,

Paull,

Wang

2024

Crop Science

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Litchi (Litchi chinensis Sonn.) fruit, with its bright red color and sweet and juicy aril, is an important fruit crop in Asia, Africa, Australia, and South America. A major cause of the postharvest loss of litchi fruit is browning and decay. Chlorophyll breakdown and flavonoid synthesis occur simultaneously during the maturation of this nonclimacteric fruit. However, once litchi fruit is harvested, pericarp desiccation and membrane breakdown occur, which leads to browning with the rate of browning and later microcracking paralleling water loss rate. In addition, chilling injury can contribute to and increase pericarp browning and membrane leakage. Polyphenol oxidase and peroxidase are possibly key enzymes in the early stages of browning. An increase in the leakage of the pericarp membrane also occurs that correlates with browning. Many chemical treatments have been evaluated to retard pericarp browning, such as melatonin, hot water, acidified calcium sulfate (ACS), adenosine triphosphate, and tea seed oil. During long distance transportation, chemical treatments that involve sulfur are used, including SO2 fumigation, acid dip after SO2 fumigation, SO2 fumigation and sulfur sheet package, or SO2 fumigation followed by controlled atmosphere (CA), if approved by the importing country. Other treatments that avoid the use of SO2 include melatonin, ACS, and hot water brushing combined with an acid dip, CA, and modified atmosphere packaging. Anthracnose is a common disease that accelerates browning and decay. Penicillium species as a saprophyte is also common with fruit infection occurring in the field, during harvest, in the packhouse, cold rooms, and shipping containers. Sulfur sheet or CA is used to reduce fruit rot after SO2 fumigation and Sportak (prochloraz) for the control of penicillium. However, a replacement for postharvest SO2 use is still urgently needed.

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Antioxidant and radioprotective properties of commercially grown litchi (Litchi chinensis) from India

Cited by 39 publications

References 29 publications

Assessment of effect of hydroalcoholic and decoction methods on extraction of antioxidants from selected Indian medicinal plants

Assessment of effect of hydroalcoholic and decoction methods on extraction of antioxidants from selected Indian medicinal plants

Enhancing antioxidant activity, microbial and sensory quality of mango (Mangifera indica L.) juice by γ-irradiation and its in vitro radioprotective potential

Litchi postharvest physiology and handling

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