Effect of Secondary Metabolites from Liquidambar formosana Leaves on the Quality of Kumquat

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The objectives of this study were to study storage characteristics and shelf life of post-harvest kumquats of secondary metabolites from Liquidambar formosana leaves. After pre-impregnation with different concentrations of secondary metabolites from Liquidambar formosana leaves (10, 30, 50 mg/100mL), kumquats were stored at room temperature (14-16°C). Over the storage period, mass loss rate, decay rate, firmness, total soluble solids (TSS), titratable acid (TA), malondialdehyde (MDA), superoxide dismutase (SOD), Ascorbic acid (VC) were measured at 3-day intervals. Results from the study showed that secondary metabolites from Liquidambar formosana leaves reduced decay rate, mass loss and MDA content, delayed the decrease of firmness and TSS, TA, VC content, enhanced the activity of SOD. These results indicate that secondary metabolites from Liquidambar formosana leaves have promising applications in postharvest preservation of kumquats.

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October 2014

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