Effect of Oil and Starch Based Edible Coating on Shelf Life of Guava Psidium guajava L. (cv Lucknow-49)

Author: Ayushi Verma, T.R. Sharma, Deepali Bajpai and Rajnee Sharma

Download PDF

Abstract

Guava is popular with a wide range of people because it is cheaper, more nutritious and tastier than other fruits but the post harvest losses of guava around 46% because of high respiration rate, making it perishable while being stored. For minimize the post harvest losses and extend the shelf life of fresh guava the present study was conducted to using an edible coating made from edible oil such as rice bran, safflower and sunflower, beeswax and cornstarch. The treatment (Cornstarch 2% + safflower oil (1%) + beeswax (1%) has been proved to be the best oil and cornstarch based edible coating for shelf life of guava cv. L - 49 in respect to maximum - total soluble solids TSS (14.32 °Brix), acidity % (0.67%), ascorbic acid (199.66mg/100g), total, sugars 9.49%. The treatment (Cornstarch (2%) + rice bran oil (1%) + bees wax (1%) found next best treatment in improving the shelf life and quality of fruit up to 12th days of storage.

Keywords

Guava, Cornstarch, Edible coating, TSS, Vitamin C

Conclusion

The maximum total soluble solids (14.32°Brix) was recorded in T7 treatment [(Cornstarch (2%) + safflower oil (1%) + beeswax (1%)], whereas the minimum (10.26 Brix) in control (T0) treatment on 12th day of storage. The maximum acidity (0.67%) was recorded in T7 treatment [(Cornstarch (2%) + safflower oil(1%) + beeswax (1%)], however the minimum (0.46%) in control (T0) treatment on 12th day of storage. The minimum TSS/acid ratio (19.38) was recorded in T7 treatment [(Cornstarch (2%) + safflower oil (1%) + beeswax (1%)] whereas the maximum TSS/acid ratio (22.31) was recorded under control (water). The maximum ascorbic acid (199.66 mg/100g) was recorded in T7 treatment [(Cornstarch (2%) + safflower oil (1%) + beeswax (1%)], whereas the minimum (110.33mg/100g) in control (T0) treatment on 12th day of storage. The maximum total sugars (9.49%) was recorded in T7 treatment [(Cornstarch (2%) + safflower oil (1%) + beeswax (1%))], whereas the minimum (7.55%) in control (T0) treatment on 12th day of storage.

References

-

How to cite this article

Ayushi Verma, T.R. Sharma, Deepali Bajpai and Rajnee Sharma (2023). Effect of Oil and Starch Based Edible Coating on Shelf Life of Guava Psidium guajava L. (cv Lucknow-49). Biological Forum – An International Journal, 15(2): 1180-1184.