Extension of Quality and Shelf Life of Tomatoes Using Chitosan Coating Incorporated with Cinnamon Oil
Author:
Venkatachalam Karthikeyan1ORCID, Lekjing Somwang1ORCID, Noonim Paramee1, Charoenphun Narin2ORCID
Affiliation:
1. Faculty of Innovative Agriculture and Fishery Establishment Project, Prince of Songkla University, Surat Thani Campus, Makham Tia, Mueang, Surat Thani 84000, Thailand 2. Faculty of Science and Arts, Burapha University Chanthaburi Campus, Khamong, Thamai, Chanthaburi 22170, Thailand
Abstract
This study examined the effects of 2% chitosan (CS) coatings incorporated with varying concentrations of cinnamon oil (CO) (0%, 0.5%, 1.0%, and 1.5%) on the extension of the quality and shelf-life of tomatoes stored under ambient conditions. Control samples were untreated and coated with distilled water. All samples were stored for 14 days at 25 ± 1 °C, with quality assessments conducted every two days. The application of CS-CO treatments was notably effective in controlling weight loss (3.91–5.26%) and firmness loss (10.81–16.51 N), sustaining the color index score (11.98–16.78), and stabilizing the total soluble solids (4.64–4.71 brix), titratable acidity (0.374–0.383%), total phenolic content (75.89–81.54 mg/100 g), ascorbic acid concentration (21.64–33.69 mg/100 g), total antioxidant capacity (85.89–91.54%) and pigment levels, particularly chlorophyll (52.80–63.18 mg/100 g), compared to control samples (p < 0.05). Higher CO concentrations (1.0% and 1.5%) in the CS coating maintained a significant level of phytochemicals in the samples compared to the control group, while CS-CO at 0.5% performed similarly in preserving the other physicochemical qualities. Both CS and CS-CO treatments extended the shelf life of the tomatoes up to 14 days (<6.78 log10 CFU/mL), whereas control samples were only viable for storage for 6 days due to higher microbial growth (>7.8 log10 CFU/mL) (p < 0.05). Overall, CS-CO-treated tomatoes demonstrated superior quality preservation and shelf-life enhancement, with a notable improvement in overall qualities as compared to the CS and control samples.
Funder
Prince of Songkla University
Reference79 articles.
1. Integral valorization of tomato by-products towards bioactive compounds recovery: Human health benefits;Coelho;Food Chem.,2023 2. Kumar, M., Chandran, D., Tomar, M., Bhuyan, D.J., Grasso, S., Sa, A.G.A., Carcifi, B.A.M., Dhumal, S., and Singh, S. (2022). Valorization potential of tomato (Solanum lycopersicum L.) seed: Nutraceutical quality, food properties, safety aspects, and application as a health-promoting ingredient in foods. Horticulturae, 8. 3. Therapeutic and medicinal uses of lycopene: A systematic review;Joshi;Int. J. Res. Med. Sci.,2020 4. Arah, I.K., Ahorbo, G.K., Anku, E.K., Kumah, E.K., and Amaglo, H. (2016). Post-harvest handling practices and treatment methods for tomato handlers in developing countries: A mini review. Adv. Agric., 6436945. 5. Post-harvest management of fruits and vegetables storage;Abdalla;Sustain. Agric. Res.,2015
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