Effect of Post Harvest Application of Antioxidants and Polyamines on Chemical Parameters of Sapota (Manilkara achras (Mill) Fosberg) Cv. Kalipatti

Author: D. Naga Harshitha*, A. Manohar Rao and Veena Joshi

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Abstract

Sapota cultivation has gained area in the past couple of decades, but post harvest losses due to spoilage are very high due to lack of adequate post harvest handling facilities and proper infrastructure. To meet out the satisfactory results, several researchers applied some technologies to increase shelf life and quality of fresh fruits. Antioxidants are chemicals which prevent the damage of tissues by scavenging free radicals produced during ripening and there by extend the shelf life of fruits. Polyamines play important role in many plants physiological process such as cell growth, development and responses to environmental stresses. Many studies have shown that polyamines could delay senescence of plant tissues by inhibiting ethylene biosynthesis and there by improve postharvest life of several fruits. The present investigation was carried out at PG laboratory in College of Horticulture, Rajendranagar during 2016-2017 and 2017-2018. The experiment was carried out in Completely Randomized Design with three replications. The chemical parameters like Moisture (%), Total soluble solids (°Brix), Titrable acidity (%), TSS to acid ratio, Total sugars (%), Reducing sugars (%), Non reducing sugars (%), Ascorbic acid (mg/100g) were estimated at 3 days interval during ripening. Postharvest treatment of fruits with antioxidant BA @ 100 ppm (T2) showed minimum physiological loss in weight (17.76 %), maximum number of days for ripening (8.50 days), firmness (1.95 kg/cm2), shelf life (12.17 days), TSS (20.69oBrix), TSS to acid ratio (132.64), total sugars (15.92 %), reducing sugars (7.04 %)and overall acceptability (7.89). There was significant influence of treatments on TSS, TSS to acid ratio, sugars, and non significant influence of treatments on parameters i.e., acidity and ascorbic acid during both the years and in pooled data respectively. Maximum TSS, TSS to acid ratio, sugars were recorded with T2 – BA @ 100 ppm fruits during both the years and in pooled data respectively.

Keywords

Antioxidants, Benzyl Adenine,Total soluble solids, Polyamines

Conclusion

This study concluded that there was significant influence of treatments on TSS, TSS to acid ratio, sugars, organoleptic score and non significant influence of treatments on quality parameters i.e., acidity and ascorbic acid during both the years and in pooled data respectively. Maximum TSS, TSS to acid ratio, sugars, sensory score were recorded with T2 – BA @ 100 ppm fruits during both the years and in pooled data respectively.

References

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How to cite this article

D. Naga Harshitha, A. Manohar Rao and Veena Joshi (2022). Effect of Post Harvest Application of Antioxidants and Polyamines on Chemical Parameters of Sapota (Manilkara achras (Mill) Fosberg) Cv. Kalipatti. Biological Forum – An International Journal, 14(4): 525-534.