Post harvest management of guava fruit crop ppt.pptx

Post harvest management of guava fruit crop ppt

1. Welcome

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3. Introduction ▶ Guava (Psidium guajava) is a native of Tropical America . ▶ Guava is the commercial fruit crop produced in tropical, subtropical regions in the World. ▶ It is also known as “ poor man’s fruit ” because of its delicious taste, excellent flavour, attractive fragrance, colour and excellent source of Vitamin C and vit- A,Ca,p etc . ▶ It ranks 4 th in area and production after mango,banana,citrus . According to National H orticulture Board total area of guava cultivation is 2,65, 000 Ha and Production is 4054 000MT. Dhawal Fruits are soft seeded,pulp white,taste sweet with muskiness . It is release from Central Institute of Sub-Tropical Horticulture (Lucknow).

4. Justification and Practical Utility ▶ This work is focused on the evaluation and the comparison of different post-harvest treatments to find out the fruits when stored at room temperature and to determine the post-harvest quality as affected by various edible coating chemical and physical treatments. ▶ The hypothesis is that if the fruits treated with the appropriate m eth o ds a n d c o n c ent r a ti o n o f a v a r i o u s c he m i c a l a n d p h y s i c a l treatments prior to storage, enhance the post storage and the s e l f -l i fe o f th e f r u it s c a n b e e x ten d e d .

5. Objectives ▶ Keeping in view the above fact in mind, the present investigation entitled “ Effect of post harvest treatments on the shelf life of Guava Fruit ( Psidium guajava L .) Cv. Dhawal ” will carried out at Post Harvest Technology Laboratory, Department of Horticulture , Sardar Vallabh Bhai Patel University of Agriculture and Technology, Meerut during the year of 2022-23 with following objectives: 1.To enhance the shelf life of guava fruit. 2.To access the quality of fruit after postharvest treatments. 3.To enhance the consumer acceptability .

6. Technical Program ▶ The proposed study entitled “ Effect of post harvest treatments on the shelf life of Guava Fruit ( Psidium guajava L.)Cv. Dhawal ” .will be laid out in a completely randomized design (CRD) with three replications during 2022-23 at Postharvest Laboratory, Department of Horticulture, Sardar Vallabh Bhai Patel University of Agriculture and Technology, Meerut. ▶ E x p er im e n t a l d e s i g n: C o m pl ete ly r a n d o m i z e d d e s i g n ▶ Nu m b e r o f T re a t m e n t s : 11 ▶ Nu m b e r o f re p li c a t i o ns : 3 ▶ Nu m b e r o f F r ui t s : 16 5 ▶ Use of Chemicals : Cassava starch , Aloevera gel , and Calcium nitrate. ▶ V a r i e t y : Dhawal

7. Illustration of treatments and treatments symbols used in the experiments S.N. Treatments Treatment Symbol 1. Control T0 2. Alovera gel (1%) T1 3. Alovera gel (2%) T2 4. Corn starch (0.5%) T3 5. Corn starch (1%) T4 6. Cassava starch (1%)+Sunflower oil T5 7. Cassava starch (2%)+Sunflower oil T6 8. Cassava starch(3%)+Sunflower oil T7 9. Calcium nitrate(0.5%) T8 10. Calcium nitrate(1%) T9 11. Cassava(1%)+Sunflower oil(1%)+Bee wax(1%) T10

8. Post harvest treatment, Aim and Result ▶ Post harvest treatment : To minimize the microbial spoilage and reduce the risk of pathogen contamination. Various Postharvest physical and chemical, Edible coating treatments may be applied to maintain fresh quality with high nutritional value. ▶ Aim : To maintain quality (appearance, texture, flavour and nutritive value),To protect food safety, and to reduce losses between harvest and consumption. ▶ Result : After harvesting of the fruits, the experiments were carried out to know the effect of physio-chemical treatments on quality of fruits, so that the fruits can be kept healthy with quality for a longer period.

9. ▶ Cassava starch modulates improvements in fresh guava and increase guava consistency during storage. ▶ The post harvest application of cassava starch (1%) improves guava fruit’s shelf life with less weight loss and high quality . ▶ It plays an important role in fruit firmness , delays senescence, reducing respiration rate , increasing aroma synthesis and reduces the ethylene production . ▶ Post harvest processing of cassava greatly increases its commercial value, and makes it safer for consumption . Effect of Cassava starch

10. Effect of calcium nitrate ▶ The treatment calcium nitrate (2%) was found most effective to i n c r e a se th e p o s t - h a r v e st l i fe o f guava f r u it s. ▶ The rate of fruit weight loss was lower in calcium treated fruits. ▶ Calcium nitrate was most effective to delay the ripening process of guava . ▶ The post harvest application of calcium nitrate (1.0%) in combination with cool chamber storage markedly reduced the rate of ripening and helped to retain the qualitative characteristics of guava .

11. ▶ Aloevera gel coating was found to be effective in maintaining the postharvest quality of guava fruits . ▶ Treatments with Aloevera gel prevented storage –induced changes such as weight loss, changes in TSS, and total chlorophyll content, while maintain the contents of sugars . ▶ Aloevera gel coating, especially at high concentrations, can be considered an eco-friendly and non-chemical substitude treatment for maintaining the postharvest quality of guava fruit. Effect on Aloevera Gel

12. Observations to be recorded ▶ Fruit skin colour ▶ Flavour/Aroma ▶ Organoleptic taste ▶ Marketability ▶ Moisture loss ▶ Fruit firmness ▶ Specific gravity ▶ TSS(⁰brix) ▶ Sugar/Acidity ratio ▶ Acidity(%)

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