Abstract
BackgroundDiabetes mellitus is a chronic metabolic disorder characterized by increased blood glucose level. It has become an epidemic disease in the 21st century where, India leads the world with largest number of diabetic subjects. Non-enzymatic glycosylation (glycation) is severe form of diabetes, occurs between reducing sugar and proteins which results in the formation of advanced glycation end products (AGEs) that leads to the other complicated secondary disorders. In this context, Mangifera indica (Mango), Syzygium cumini (Jambul), Vitis vinifera (Grapes), Citrus sinensis (Orange), Artocarpus heterophyllus (Jackfruit), Manilkara zapota (Sapodilla) seeds were evaluated for their antiglyation activity. Attempts were made to isolate the polyphenols in the seeds that have recorded the maximum activity.MethodsDifferent extraction methods (shake flask, centrifugation and pressurized hot water) using various extractants (organic solvents, hot water and pressurized hot water) were adopted to investigate the in vitro antiglycation activity. Central composite (CCD) design based Response Surface Methodology (RSM) was espoused to optimize the extraction process of polyphenols from the fruit seeds that have recorded poor antiglycation activity. The PTLC analysis was performed to isolate the polyphenols (Flavonoids and phenolic acids) and LC-PDA-MS analysis was done for structure prediction.ResultsPressurized hot water extraction of Artocarpus heterophyllus (87.52%) and Citrus sinensis seeds (74.79%) was found to possess high and low antiglycation activity, respectively. The RSM mediated optimization process adopted for the Citrus sinensis seeds have revealed that 1:15 solvent ratio (hexane to heptane), 6 minutes and 1:20 solid to liquid ratio as the optimal conditions for the extraction of polyphenols with a maximum antiglycation activity (89.79%). The LC-PDA-MS analysis of preparative thin layer chromatography (PTLC) eluates of Artocarpus heterophyllus seed has showed the presence of compounds like quercetin (301.2), 4-hydroxy phenyl acetic acid (149.0), rhamnosyl-di-hexosyl quercetin sulphate (857.6), quercetin-3-O-xyloside (428.2), rutin (613.4), diosmetin (298.1) and luteolin (283.0).ConclusionThe Artocarpus heterophyllus was observed to possess a significant antiglycation activity and the activity of Citrus sinensis was improved after the optimization process, which proved that both the seeds may be used as a traditional medicine in the management of chronic diabetes mellitus.
Highlights
IntroductionA metabolic endocrine disorder, has become a common global health problem that affects >170 million people worldwide
Diabetes mellitus, a metabolic endocrine disorder, has become a common global health problem that affects >170 million people worldwide
The experimental analysis on the evaluation of the antiglycation property has revealed that Artocarpus heterophyllus (PHWE: 87.52%) and Mangifera indica (PHWE: 84.76%) possess maximal activity, Vitis vinifera and Manilakara zapota (PHWE: 81.59%) own near maximal activity and Syzygium cumini and Citrus sinensis hold near moderate or considered as poor activity
Summary
A metabolic endocrine disorder, has become a common global health problem that affects >170 million people worldwide It is one of the leading causes of death and disability. Non-enzymatic glycosylation (glycation) is severe form of diabetes, occurs between reducing sugar and proteins which results in the formation of advanced glycation end products (AGEs) that leads to the other complicated secondary disorders. In this context, Mangifera indica (Mango), Syzygium cumini (Jambul), Vitis vinifera (Grapes), Citrus sinensis (Orange), Artocarpus heterophyllus (Jackfruit), Manilkara zapota (Sapodilla) seeds were evaluated for their antiglyation activity. Attempts were made to isolate the polyphenols in the seeds that have recorded the maximum activity
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