Development and Quality Evaluation of Functional Hard Candy Enriched with Cymbopogon Citratus (Lemon Grass) Extract

The growing demand for functional confectionery products has encouraged the incorporation of natural plant-based ingredients with health-promoting properties into conventional sugar-based foods. The present study aimed to develop and evaluate a functional hard candy enriched with Cymbopogon citratus (lemongrass) extract. Fresh lemongrass leaves were processed using thermal and non-thermal extraction methods, and the extracts were incorporated into a standard hard candy formulation containing sucrose, liquid glucose, citric acid, and water. The developed candies were evaluated for their physicochemical characteristics, including moisture, total sugars, reducing sugars, ash, and titratable acidity, using standard AOAC methods. Sensory quality was assessed by twenty semi-trained panellists using a nine-point hedonic scale.

The developed lemongrass candy exhibited desirable physicochemical properties, with moisture (2.05%), total sugars (93.2%), reducing sugars (23.8%), ash (0.28%), and titratable acidity (0.52%), all of which were within the acceptable range for hard-boiled confectionery. Sensory evaluation revealed that both formulations were well accepted. The candy prepared using thermally extracted lemongrass showed higher scores for appearance, texture, and overall acceptability, whereas the non-thermally extracted formulation received higher scores for colour, aroma, and taste, indicating better retention of natural volatile compounds. These findings demonstrate that the extraction method significantly influences the sensory characteristics of lemongrass candy while maintaining desirable physicochemical quality.

The study concludes that Cymbopogon citratus can be successfully incorporated into hard candy to produce a functional confectionery with good storage stability, favourable sensory properties, and potential health benefits. The developed product offers a promising value-added herbal confectionery with potential for commercial application.

Cymbopogon citratus; Functional hard candy; Lemongrass extract; Herbal confectionery; Physicochemical properties

1. Aćimović, M., Kiprovski, B., & Gvozdenac, S. (2020). Application of Cymbopogon citratus in agrofood industry. Journal of Agronomy, Technology and Engineering Management. [Google Scholar] [Crossref]

2. Agnish, S., Sharma, A. D., & Kaur, I. (2022). Underutilized plant Cymbopogon pendulus-derived essential oil is an excellent source of bioactives with diverse biological activities. Russian Agricultural Sciences, 48(2), 89–102. [Google Scholar] [Crossref]

3. Al-Maqtari, Q. A., Rehman, A., Mahdi, A. A., et al. (2021). Application of essential oils as preservatives in food systems: Challenges and future prospectives—A review. Phytochemistry Reviews, 21(4), 1209–1246. https://doi.org/10.1007/S11101-021-09776-Y [Google Scholar] [Crossref]

4. AOAC International. (2019). Official methods of analysis of AOAC International (21st ed.). AOAC International. [Google Scholar] [Crossref]

5. Avoseh, O. N., Oyedeji, O. O., Rungqu, P., Nkeh-Chungag, B. N., & Oyedeji, A. O. (2015). Cymbopogon species: Ethnopharmacology, phytochemistry and the pharmacological importance. Molecules, 20(5), 7438–7453. https://doi.org/10.3390/molecules20057438 [Google Scholar] [Crossref]

6. Bajrang, C. P., Sudheer, W. N., Banadka, A., Vasantha, V. L., Nagella, P., & Manjunath, B. T. (2025). Advanced breeding strategies of lemon grass (Cymbopogon citratus). In Advances in aromatic crops research (pp. 121–137). Springer. https://doi.org/10.1007/978-3-031-81838-7_5 [Google Scholar] [Crossref]

7. Barbosa, L. C. A., Pereira, U. A., Martinazzo, A. P., Maltha, C. R. A., Teixeira, R. R., & Melo, E. D. C. (2008). Evaluation of the chemical composition of Brazilian commercial Cymbopogon citratus samples. Molecules, 13, 1864–1874. [Google Scholar] [Crossref]

8. Boukhatem, M. N., Kameli, A., Ferhat, M. A., Saidi, F., & Tayebi, K. (2014). The food preservative potential of essential oils: Is lemongrass the answer? Journal für Verbraucherschutz und Lebensmittelsicherheit, 9, 13–21. [Google Scholar] [Crossref]

9. Boukhatem, M. N., Kameli, A., Saidi, F., & Kebir, H. T. (2014). Lemongrass (Cymbopogon citratus) essential oil as a potent anti-inflammatory and antifungal agent. Libyan Journal of Medicine, 9(1), Article 25431. https://doi.org/10.3402/ljm.v9.25431 [Google Scholar] [Crossref]

10. Burt, S. (2004). Essential oils: Their antibacterial properties and potential applications in foods—A review. International Journal of Food Microbiology, 94(3), 223–253. https://doi.org/10.1016/j.ijfoodmicro.2004.03.022 [Google Scholar] [Crossref]

11. Chandrashekar, K. S., & Prasanna, K. S. (2010). Analgesic and anti-inflammatory activities of the essential oil from Cymbopogon flexuosus. Pharmacognosy Journal, 2(14), 23–25. [Google Scholar] [Crossref]

12. Efe, N., & Dawson, P. (2022). A review: Sugar-based confectionery and the importance of ingredients. European Journal of Agriculture and Food Sciences, 4(5), 60–67. https://doi.org/10.24018/ejfood.2022.4.5.552 [Google Scholar] [Crossref]

13. Ekpenyong, C. E., Akpan, E., & Nyoh, A. (2015). Ethnopharmacology, phytochemistry, and biological activities of Cymbopogon citratus (DC.) Stapf extracts. Chinese Journal of Natural Medicines, 13(5), 321–337. https://doi.org/10.1016/S1875-5364(15)30023-6 [Google Scholar] [Crossref]

14. Ergun, R., Lietha, R., & Hartel, R. W. (2010). Moisture and shelf-life in sugar confectionery. The Manufacturing Confectioner. [Google Scholar] [Crossref]

15. Fokom, R. A. (2019). Growth, essential oil content, chemical composition and antioxidant properties of lemongrass as affected by harvest period and arbuscular mycorrhizal fungi in field conditions. Industrial Crops and Products, 138, 111477. [Google Scholar] [Crossref]

16. Han, X., & Parker, T. L. (2017). Lemongrass (Cymbopogon flexuosus) essential oil demonstrated anti-inflammatory effect in pre-inflamed human dermal fibroblasts. Biochimie Open, 4, 107–111. [Google Scholar] [Crossref]

17. Hartel, R. W., von Elbe, J. H., & Hofberger, R. (2018). Confectionery science and technology (2nd ed.). Springer. [Google Scholar] [Crossref]

18. Hyldgaard, M., Mygind, T., & Meyer, R. L. (2012). Essential oils in food preservation: Mode of action, synergies, and interactions with food matrix components. Frontiers in Microbiology, 3, Article 12. https://doi.org/10.3389/fmicb.2012.00012 [Google Scholar] [Crossref]

19. Kiani, H. S., Ali, A., Zahra, S., Hassan, Z. U., Kubra, K. T., Azam, M., & Zahid, H. F. (2022). Phytochemical composition and pharmacological potential of lemongrass (Cymbopogon spp.) and impact on gut microbiota. AppliedChem, 2(4), 229–246. [Google Scholar] [Crossref]

20. Kumoro, A. C., Wardhani, D. H., Retnowati, D. S., & Haryani, K. (2021). A brief review on the characteristics, extraction and potential industrial applications of citronella grass (Cymbopogon nardus) and lemongrass (Cymbopogon citratus) essential oils. IOP Conference Series: Materials Science and Engineering, 1053(1), 012118. https://doi.org/10.1088/1757-899X/1053/1/012118 [Google Scholar] [Crossref]

21. Mahouachi, W., Saeed, A., Rehman, R., Shehzad, M. R., & Nisar, S. (2016). Lemongrass: A review on its botany, properties, applications and active components. International Journal of Chemical and Biochemical Sciences. [Google Scholar] [Crossref]

22. Majewska, E., Kozlowska, M., Gruszczynska-Sekowska, E., Kowalska, D., & Tarnowska, K. (2019). Lemongrass (Cymbopogon citratus) essential oil: Extraction, composition, bioactivity and uses for food preservation—A review. Polish Journal of Food and Nutrition Sciences, 69(4). [Google Scholar] [Crossref]

23. Pereira, C. A. M., et al. (2022). Exploring the anti-hypertensive potential of lemongrass—A comprehensive review. Biology, 11(10), 1382. https://doi.org/10.3390/biology11101382 [Google Scholar] [Crossref]

24. Prmila. (2018). A review on the medicinal and aromatic plant Cymbopogon martinii (Roxb.) Watson (Palmarosa). International Journal of Chemical Studies, 6(2), 1311–1315. [Google Scholar] [Crossref]

25. Rabbani, A., Khaliq, A., Mudgil, P., Maqsood, S., & Nazir, A. (2025). Recent advances in lemongrass essential oil: Food safety, preservation, and bioactivity in food systems. Comprehensive Reviews in Food Science and Food Safety, 25(1), e70350. [Google Scholar] [Crossref]

26. Ranade, S. S., & Thiagarajan, P. (2015). International Journal of Pharmaceutical Sciences Review and Research, 35(2), 162–167. [Google Scholar] [Crossref]

27. Rohmawaty, E., Wiraswati, H. L., Zahra, T. A., Amalina, S. N., Ramadhanti, J., Rosdianto, A. M., Laelalugina, A., Nasution, G. T. D., & Kamisah, Y. (2025). Antioxidant and anti-inflammatory potential of Cymbopogon nardus ethanol extract on 3T3-L1 cells. Journal of Inflammation Research, 18, 2125–2136. [Google Scholar] [Crossref]

28. Shah, G., Shri, R., Panchal, V., Sharma, N., Singh, B., & Mann, A. S. (2011). Scientific basis for the therapeutic use of Cymbopogon citratus (Stapf) (Lemongrass). Journal of Advanced Pharmaceutical Technology & Research, 2(1), 3–8. https://doi.org/10.4103/2231-4040.79796 [Google Scholar] [Crossref]

29. Spriha, R., Singh, & Kumar, A. (2021). Lemongrass: A wonder herb of Poaceae family—An overview. Biological Forum – An International Journal, 13(2), 298–308. [Google Scholar] [Crossref]

30. Thasrin, F. J., & Anitha, V. (2023). Nutritional and nutraceutical potentials of lemongrass (Cymbopogon citratus). International Journal of Current Science Research and Review, 6(5). [Google Scholar] [Crossref]

31. Wolf, B. (2016). Sugar confectionery. In Reference module in food science. Elsevier. [Google Scholar] [Crossref]

32. Zhou, Y., Akter, S., Phan, A. D. T., Bobasa, E. M., Seididamyeh, M., Sivakumar, D., & Sultanbawa, Y. (2024). Australian native lemongrass (Cymbopogon ambiguus A. Camus): An underestimated herbal plant. Journal of Applied Chemistry. [Google Scholar] [Crossref]

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