Influence of Edible Starch and Sodium Bi-carbonate on Postharvest Quality of Minimally Processed Carrot and Potato

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Md. Nazmul Hasan Mehedi
Avijit Halder
Md. Fakhrul Hasan
Nowrin Islam Toma
Md. Abdur Rouf
Jannatul Farthouse
Md. Aktarul Islam


The demand for healthy and ready-to-eat products has been growing steadily over the years. However, these products are very susceptible to spoilage and have a short shelf-life. In this research, edible coatings based on edible starch (aloe vera gel) and NaHCO3 were applied on fresh-cut vegetable samples (carrot and potato), and the changes in their bio-chemical properties and microbial changes were monitored during 6 days of storage at 4ºC. Two factor experiments, Factor A; postharvest treatments (different concentration of aloe gel and NaHCO3) and Factor B; two vegetable species (Carrot and Potato) were laid out in a Completely Randomized Design (CRD) with three replications. Different concentration of aloe vera gel and NaHCO3 solutions were prepared as per treatment. The prepared slices of vegetable species were treated with different treatment combinations and stored in 200 g capacity polyethylene bags sealed under air, vacuum or modified active atmosphere and then bio-chemically (Titratable Acidity (TA), Ascorbic Acid (AA) content, Total Soluble Solids (TSS), Reducing Sugar (RS), Non-reducing Sugar (NRS), pH) and microbiologically assessed. Higher rate of edible starch (30%) + NaHCO3 (2%) treated potato (CT12) showed the superior performance on TA (1.290), TSS (5.200% Brix), NRS content (0.340) and pH (4.773% Brix) compare to control and other interaction treatments of the study at 6 days after storage while  untreated potato (T0) showed statistically lower AA (6.575 mg/25 g) TA (0.464) TSS (3.856), pH (3.827) NRS (0.133). Growth of bacterial colonies on NA media had statistically highest (14.00) in untreated potato and lowest (5.00) in T12 treated potato while fungal colonies on PDA media range of 4.00 to 11 at 6 DAS. The study may help small-scale establishments to increase the shelf-life of minimally processed vegetables.

Fresh-cut vegetable, edible starch, sodium bi-carbonate, minimal processing, bio-chemical properties.

Article Details

How to Cite
Mehedi, M. N. H., Halder, A., Hasan, M. F., Toma, N. I., Rouf, M. A., Farthouse, J., & Islam, M. A. (2020). Influence of Edible Starch and Sodium Bi-carbonate on Postharvest Quality of Minimally Processed Carrot and Potato. Asian Journal of Agricultural and Horticultural Research, 6(2), 1-12.
Original Research Article


Gόmez-Lόpez VM, Rajkovic A, Ragaert P, Smigic N, Devlieghere F. Chlorine dioxide for minimally processed produce preservation: A review. Trends in Food Science & Technology. 2009;20(1): 17-26.

Ramos B, Miller FA, Brandão RRS, Teixeira P, Silva CLM. Fresh fruits and vegetables – An overview on applied methodologies to improve its quality and safety. Innovative Food Science and Emerging Technologies. 2015;20:1-15.

Francis GA, Gallone A, Nychas GJ, Sofos JN, Colelli G, Amodio ML, Spano G. Factors affecting quality and safety of fresh-cut produce. Critical Reviews in Food Science and Nutrition. 2015;52(7):595- 610.

Khan MKI, Cakmak H, Tavman S, Schutyser M, Schroen K. Anti browning and barrier properties of edible coatings prepared with electro spraying. Innovative Food Science and Emerging Technologies. 2014;25:9-13.

Yousuf B, Qadri OS, Srivastava AK. Recent developments in shelf-life extension of fresh-cut fruits and vegetables by application of different edible coatings: A review. LWT – Food Science and Technology. 2018;89:198-209.

Bravin B, Peressini D, Sensidoni A. Development and application of polysaccharide-lipid edible coating to extend shelf-life of dry bakery products. Journal of Food Engineering. 2006;76(3): 280-290.

Eom H, Chang Y, Lee E, Choi HD, Han J. Development of a starch/gum-based edible coating for rice cakes to retard retrogradation during storage. LWT - Food Science and Technology. 2018;97:516-522.

Poverenov E, Danino S, Horev B, Granit R, Vinokur Y, Rodov V. Layer by-layer electrostatic deposition of edible coating on fresh cut melon model: Anticipated and unexpected effects of alginate-chitosan combination. Food and Bioprocess Technology. 2006;7(5):1424-1432.

Zhong Y, Cavender G, Zhao Y. Investigation of different coating application methods on the performance of edible coatings on Mozzarella cheese. LWT – Food Science and Technology. 2014;56(1):1-8.

Tharanathan RN. Biodegradable films and composite coatings: Past, present and future. Trends Food Sci. Technol. 2003; 14(3):71-78.

Versino F, Lopez OV, Garcia MA, Zaritzky NE. Starch based films and food coatings: An overview. Starch/Stärke. 2016;68:1026-1037.

Robles-Sánchez RM, Rojas-Graü MA, Odriozola-Serrano I, González- Aguilar G, Martin-Belloso O. Influence of alginate-based edible coating as carrier of antibrowning agents on bioactive compounds and antioxidant activity in fresh-cut Kent mangoes. LWT-Food Sci. Technol. 2003; 50(1):240-246.

Martinez–Romero DL, Alburquerque N, Valverde JM, Guillen F, Castillo S. Postharvest cherry quality and safety maintenance by Aloe vera treatment: A new edible coating. Postharvest Biol Technol. 2006;39:93–100.

Herdt J, Feng H. Aqueous antimicrobial treatments to improve fresh and fresh–cut produce safety. In: Fan X, Niemira BA, Doona CJ, Feeherry FE, Gravani RB, editors. Microbial safety of fresh produces. Ames, Iowa: Wiley–Blackwell. 2009:169–90.

Velazquez LC, Barbini NB, Escudero ME, Estrada CL, Guzḿan AMS. Evaluation of chlorine, benzalkonium chloride and lactic acid as sanitizers for reducing Escherichia coli O157:H7 and Yersinia enterocolitica on fresh vegetables. Food Control. 2009; 20:262–268.

Rangana. Manual analysis of fruits and vegetables product. Tata McGraw Hill Co. Ltd., New Delhi; 1979.

Gomez KA, Gomez AA. Statistical procedures for agricultural research (2 ed.). John wiley and sons, New York. 1984:680.

García MA, Ventosa M, Díaz R, Falco S, Casariego A. Effects of aloe vera coating on postharvest quality of tomato. Fruits. 2014;69(2):117–126.

Adetunji CO, Fadiji AE, Aboyeji OO. Effect of chitosan coating combined aloe vera gel on cucumber (Cucumis Sativa L.) postharvest quality during ambient storage. Journal of Emerging Trends in Engineering and Applied Sciences (JETEAS). 2014; 5(6):391–397.

Marpudi SL, Abirami LSS, Pushkala R, Srividya N. Enhancement of storage life and quality maintenance of papaya fruits using Aloe vera based antimicrobial coating. Indian Journal of Biotechnology. 2011;110:83–89.

Choi S, Chung M. A review on the relationship between Aloe vera components and their biologic effects. Seminner of Integrated Methodology. 2003;1(1):53–62.

Mohebbi M, Ansarifar E, Hasanpour N, Amiryousefi MR. Suitability of Aloe Vera and Gum Tragacanth as Edible Coatings for Extending the Shelf Life of Button Mushroom Food Bioprocess Technology. 2012;5:3193–3202.