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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(1): 2378-2386
DOI: https://doi.org/10.20546/ijcmas.2020.901.271


Study of Application of Composite Coating of Guar Gum-Garlic Oil on Grapes
Jagruti Jankar1*, Vasant Pawar1 and Ajay KumarSharma2
1MIT College of Food technology, MIT ADT University, Pune, India
2ICAR-National Research Centre of Grapes, Pune, India
*Corresponding author
Abstract:

Prevailing high temperature during harvesting to consumption of grapes in India results in accelerated water loss, faster respiration, physiological weight loss, rachis browning, berry shattering, poor shelf life and finally leads to significant post-harvest losses. Fruit surface is protected by the application of coating to maintain its freshness and shelf life for longer duration. Present experiment was designed to determine the effectiveness of guar gum (GG)/Garlic Oil (GO) composite coatings for maintaining the quality of Thompson Seedless grapes while stored at 10°C and 60-65 per cent relative humidity. Coating emulsions were formulated using guar gum (0.5 per cent) with different GO concentrations viz., 0.125, 0.5 and 1 per cent as T1, T2, T3, respectively and uncoated grapes were used as a control (T4). The recorded data showed that coated berries were registered with delayed changes in total soluble solids and titratable acidity in comparison to control. Physiological loss in weight in coated treatments were effectively lowered. Antioxidant activities and total phenols were increased in treated berries during the storage. Microbial load and total plate counts were decreased in coated berries. Among four treatments, T2 and T3 showed better results than other treatments. Results of present study indicated that treatment T2 was effective in maintaining quality of Thompson Seedless grapes when stored at 10° and 60-65 per cent RH.


Keywords: Thompson Seedless, Shelf life, Storage, Quality, Microbial status, Antioxidants
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How to cite this article:

Jagruti Jankar, Vasant Pawar, Ajay KumarSharma. 2020. Study of Application of Composite Coating of Guar Gum-Garlic Oil on Grapes.Int.J.Curr.Microbiol.App.Sci. 9(1): 2378-2386. doi: https://doi.org/10.20546/ijcmas.2020.901.271