The increasing demand for low-calorie and health-oriented has led to the development of innovative formulations in traditional pickles. This study focuses on the formulation of a functional low-calorie sweet and sour gherkin chips pickle with non-nutritive sweeteners as a substitute for conventional sugar. Gherkins (Cucumis sativus) were processed into chips and subjected to different formulation trials by varying the type and concentration of sweeteners. The prepared samples were analysed for physicochemical properties, including titratable acidity, salt content, total soluble solids (TSS), and pH, along with sensory attributes such as taste, texture, odour, appearance, and overall acceptability. Among the different trials, the optimized formulation exhibited a desirable balance of sweetness and sourness with improved sensory scores, while significantly reducing caloric content. The use of non-nutritive sweeteners not only enhanced the suitability of the product for health-conscious consumers but also maintained the traditional flavor profile of pickles. Microbial stability and shelf-life aspects were also considered to ensure product safety and quality. This research study has successfully developed low-calorie pickle by using non-nutritive sweeteners in pickle formulations to produce healthier alternatives without affecting product quality and shelf-life stability.
Introduction
Food preservation, particularly pickling, is an effective method to extend shelf life by inhibiting microbial growth through acidity, salt, and osmotic pressure. Gherkins (a type of cucumber) are ideal for pickling due to their texture and nutritional value. This study focuses on developing a low-calorie sweet and sour gherkin pickle using non-nutritive sweeteners like stevia and erythritol to reduce sugar content while maintaining taste and quality.
The preparation involved slicing gherkins, immersing them in a vinegar-based brine with salt, calcium chloride, spices, and sweeteners, followed by pasteurization and storage. Three formulations were tested, and Trial-3 was found to be the most acceptable based on sensory qualities such as taste, texture, and appearance.
Physico-chemical analysis showed that the developed product met standard quality parameters (pH, acidity, salt content, etc.), while nutritional analysis confirmed a significant reduction in calories and carbohydrates compared to the control sample. Microbial analysis indicated the product was safe and stable, with negligible bacterial and no yeast/mold growth.
Conclusion
The present study successfully developed a low-calorie sweet and sour gherkin chips pickle by incorporating non-nutritive sweeteners as partial or complete replacements for conventional sugar. The formulation process demonstrated that the combined use of stevia and erythritol can effectively deliver the desired sweetness while maintaining the characteristic flavor profile of traditional pickles. The inclusion of vinegar, salt, and calcium chloride contributed to product stability, preservation, and texture enhancement, ensuring that the final product met acceptable quality standards. Physico-chemical analysis confirmed that the developed pickle exhibited suitable pH, titratable acidity, and proximate composition, indicating good shelf stability and safety. Sensory evaluation revealed that among the different formulations, Trial 3 was found to be the most acceptable in terms of taste, texture, and overall palatability. The optimized formulation achieved a balanced sweet and sour profile without the bitterness or aftertaste often associated with certain non-nutritive sweeteners, demonstrating the effectiveness of ingredient optimization. Overall, the study highlights the potential for developing healthier, low-calorie alternatives to conventional pickled products without compromising quality or consumer acceptance. The successful use of stevia and erythritol in gherkin pickle formulation opens new opportunities for innovation in functional and diet-friendly foods.
References
[1] AOAC (2019). Official Methods of Analysis (21st ed.). Association of Official Analytical Chemists.
[2] Battcock, M., & Azam-Ali, S. (1998). Fermented Fruits and Vegetables: A Global Perspective. FAO.
[3] BIS (2012). Indian Standards for Microbiological Analysis. Bureau of Indian Standards.
[4] Desrosier, N. W., & Desrosier, J. N. (1977). The Technology of Food Preservation. AVI Publishing.
[5] Fellows, P. J. (2009). Food Processing Technology: Principles and Practice (3rd ed.). Woodhead Publishing.
[6] FSSAI (2016). Manual of Methods of Analysis of Foods. Food Safety and Standards Authority of India.
[7] Frazier, W. C., & Westhoff, D. C. (2004). Food Microbiology (4th ed.). Tata McGraw-Hill.
[8] Jay, J. M., Loessner, M. J., & Golden, D. A. (2005). Modern Food Microbiology (7th ed.). Springer.
[9] Kumar, P., & Joshi, V. K. (2017). Vegetable Preservation and Processing.
[10] Livesey, G. (2003). Health potential of polyols as sugar replacers. British Journal of Nutrition, 89(S1), S31–S45.
[11] Livesey, G. (2003). Health potential of polyols as sugar replacers. Nutrition
[12] Meilgaard, M., Civille, G. V., & Carr, B. T. (2007). Sensory Evaluation Techniques (4th ed.). CRC Press.
[13] M. Grembecka, 20th ed., 2016H “Natural sweeteners in food,” European Food Research and AOAC International, Official Methods of Analysis, 20th ed., 2016H.
[14] Potter, N. N., & Hotchkiss, J. H. (1995). Food Science (5th ed.). Springer.
[15] Rahman, M. S. (2007). Handbook of Food Preservation (2nd ed.). CRC Press.
[16] Robinson, R. W., & Decker-Walters, D. S. (1997). Cucurbits. CAB International.
[17] Ranganna, S. (2010). Handbook of Analysis and Quality Control for Fruit and Vegetable Products. Tata McGraw-Hill.
[18] Robertson, G. L. (2016). Food Packaging: Principles and Practice (3rd ed.). CRC Press.
[19] R. F. McFeeters, “Calcium chloride effects on pickled vegetables,” Journal of Food Science, vol. 69, no. 4, pp. FCT134–FCT137, 2004.[5] United States Department of Agriculture, Complete Guide to Home Canning, 2015.
[20] Srinivasa Rao, N. K., Shivashankara, K. S., & Laxman, R. H. (2012). Cucumber (Cucumis sativus L.) and its cultivation. Indian Council of Agricultural Research.
[21] Stone, H., & Sidel, J. L. (2004). Sensory Evaluation Practices (3rd ed.). Academic Press.
[22] T. Lawless and H. Heymann, Sensory Evaluation of Food: Principles and Practices. Springer, 2010.
[23] USDA (2020). Nutritional Database for Standard Reference. United States Department of Agriculture.
[24] USDA (2020). Food Data Central Database. United States Department of Agriculture.
[25] Y. H. Hui, 2010.Handbook of Vegetables and Vegetable Processing. Wiley, 2010.