edible coating to improve the shelf life of papaya Presentation.pptx

shelf life of papaya improvement

1. WELCOME TO THE SYNOPSIS SEMINAR

2. Synopsis Seminar on “Study on different post harvest treatment for improving shelf life and quality of Papaya fruit ( Carica papaya L . ) cv. Red lady ” Presented by: Arunesh Kumar Verma Id no. 6437 /22 Department o f Fruit science SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE & TECHNOLOGY, MEERUT -250110

3. Student Details Name : Arunesh Kumar Verma Degree Programme : M.Sc Horticulture ( Fruit Science) Id no. : 6437 /22 Major : Fruit Science Minor : Agriculture Engineering Name of the Advisor : Dr . S.K Tripathi (Associate Professor ) Fruit Science

4. Members of Advisory Committee

5. PAPAYA Botanical Name : Carica Papaya Other name : Wonder fruit of tropics Family : Caricaceae Origin : Tropical America Chromosome no. : 2n = 18

6. INTRODUCTION The Papaya ( Carica papaya L.) is native of Tropical America was introduced to India in the 18th century. Papaya belongs to family Caricaceae . In India , it is largerly grown in Andhra Pradesh, Bihar , Maharashtra, Madhya Pradesh, Uttar Pradesh . Papaya has an attractive taste and fragrance and high nutritional value. It is a wholesome fruit and rich in V it -A (2000 IU/100g). Products such as jam, jelly and nectar can be prepared from the fruits. Papaya yield a valuable proteolytic enzyme, papain, which has various use in medicine and industry. According to National Horticulture Board (2021-22 ) , Papaya is grown over 149 thousand hectare area of land in India producing 5744 thousand metric tonnes of fruit . Contribution of Uttar Pradesh is 111.85 thousand tonnes which has share of 1.95 % of total production.

7. Justification Papaya is the most economically important and nutritionally rich tropical fruit; it has high commercial value but a highly perishable nature; its sensitivity to postharvest diseases and physical injury limits its successful marketing. Postharvest losses in fruits are a serious problem because of rapid deterioration during handling, transport and storage. Edible coatings and some chemicals like ethrel , aloevera gel , corn starch and cassava starch can be potentially used as an elective preservation technique to extend the shelf life of fruits.

8. Objectives T he present investigation entitled “ Study on different post harvest treatment for improving shelf life and quality of Papaya fruit ( Carica papaya L .) Cv. Red lady ”, is initiated with following objectives: 1. To find out the ripening behaviour of papaya cv. Red lady. 2. To know the effect of Post harvest treatments on quality and shelf life of Papaya fruit. 3. To study the effect of chemicals on physiological characters during ripening and storage of Papaya fruit.

9. Technical Program The proposed study entitled “ Study on different post harvest treatment for improving shelf life and quality of Papaya fruit ( Carica papaya L .) cv. Red lady ”. will laid out in completely randomized design (CRD) with three replications during 2022-23 at PG Laboratory, College of Horticulture of SVPUAT Meerut, Uttar Pradesh. Experimental design : Completely R andomized Design Number of Treatments : 10 Number of replications : 3 Number of Fruits : 90 Use of edible coatings and chemical : Ethrel , Aloevera gel, Corn starch, Cassava starch Variety : Red Lady

10. Illustration of treatments and treatment symbols used in the experiments:

11. Post harvest treatment, Aim & Result Post harvest treatment : Papaya fruits ripen unevenly on the tree and natural ripening can be unpredictable. Hence, to overcome this problem, certain chemical and physical treatments are used to ripen the fruits artificially . Aim : To maintain quality (appearance, texture, flavour and nutritive value) 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.

12. Effect of Ethrel Ethrel is an ethylene-releasing chemical substance that can be used to improve fruit color development and also stimulate the ripening process of the fruits. Use of ethrel had a significant impact on the shelf life of the papaya fruits because the ethrel treated fruit could retain the characters like T.S.S, acidity , sugar, total carotenoids and organoleptic characters for a longer duration than control .

13. Effect of Corn Starch Corn starch is a carbohydrate based edible coatings used for extending shelf life of fruits, it is biologically absorbent and semi permeable to gases, odorless , tasteless, colorless and non-toxic. C orn starch not only extends the shelf life but also preserves the quality during storage by providing strong and selective barriers to moisture transfer, oxygen uptake , losses of volatile aromas flavor and pleasant visual aspect .

14. Effect of Aloe vera Gel Aloevera is a perennial plant of with turgid green leaves joined at the stem in a rosette pattern . Coating with Aloe vera gel reduces dehydration of fruits during storage without loss of taste, aroma and favours . Aloe vera gel is tasteless, colorless and odorless . This natural product is a safe and environmentally friendly. It has been proven one of the best edible and biologically safe preservative coatings for fruits because of its film-forming properties, antimicrobial actions, biodegradability properties.

15. Observations to be recorded:- Fruit skin colour Flavour /Aroma Organoleptic taste Moisture loss Decay % Fruit firmness Specific gravity Total Soluble Solids (TSS) ( ⁰brix) Sugar/Acidity ratio Acidity (%)

16. Thank You