Post Harvest Losses Reduction of Tomatoes <i>(Lycopersicon esculentum L)</i> Stored in Natural Preservatives
Keywords:Tomatoes, proximate analysis, shelf life, natural preservatives, sensory evaluation
Preservation practised in the food industry always involves the use of combination methods for achieving maximum effectiveness. Chemical preservatives are carcinogenic with high residual toxicity. Botanicals could therefore have advantages over synthetics as a cost effective and environmentally sustainable, alternative for protecting stored produce.
The study assessed the nutritional and shelf life changes in wholesome Tomatoes (L. esculentum) stored in aqueous extracts of thyme (Thymus vulgaris), garlic (Allium sativum), ginger (Zingiber officinale), Eugenia clove (Eugenia aromatica) and salt. The mean values for the proximate analysisÂ were Vitamin C 18.0Â±0.5 mg/100g, Total soluble solids 6.5 Â±0.5, Total reducing sugar 2.45Â±0.01mg/100g, Total titratable acidity 0.99Â±0.05%, SolubleÂ protein 2.5Â±0.06 and Ash content 0.30 % at the end ofÂ sixthÂ month. Values of all parameters decreased Â Â throughout the storage period except titratable acidity. These parameters were monitored for a period of six months. All parameters analysed were significantly different (Pâ‰¥ 0.05). The results for sensory evaluation were rated high for four months. The storage duration was six months for ambient and eight months for refrigerated experimental samples.
â€¢ Adekalu, O.A. (2014). Studies on Physicoâ€“chemical, Handling and Storage of sweet Oranges (Citrus sinensis Osberk) PhD. Thesis submitted to Federal University of Agriculture Abeokuta, Nigeria.
â€¢ Adekalu, O.A., Olatunde, I.G., Echendu, B.M., Adepoju, T.C. and Fajemisin, O.O. (2009). Anti microbial and Preservative Activities of Allium sativum and Eugenia aromatic on Tomato Puree.Agricultural Research 4 (2): 139-140.
â€¢ Ajaiyeoba, E. (2006). Activity of Ethanolic Extracts of Syzygium aromaticum and Allium sativum against food associated bacteria and fungi. Ethno-botanical leaflets 14: 344-360
â€¢ Adekunle, A.A. (2001). Ethno botanical Studies of some medicinal plants from Lagos state of Nigeria. Nigerian Journal of Botany. 14: 71-79
â€¢ Audia, Barnett. (2011). Adding value to Jamaica Herbs and Spices: Reducing post harvest losses and expanding market opportunities. Scientific Research Council, Jamaica.
â€¢ Audu Haruna. (2010). Tomato Dealers in Bauchi State need Silos for Perishables. Business and Economy Column. In Daily Punch March 18 2010:17
â€¢ Aworh, O.C, Nwankwo, C.F. and Olorunda, A.O. (1991). Control of Post harvest losses in Citrus Fruits under Tropical condition: Effect of wax and fungicide. Tropical Science (UK) 31(2): 177-178.
â€¢ Chattopadhyah, R.R. and Bhanttachary, S.K. (2007). Herbal Spices as alternative anti microbial food Preservative, An Uptake Pharmangonosy Review: 234-239.
â€¢ Dubious, M., Gille, K.A., Hamilton, J.K., Rebers, P.A. and Smith, F. (1956). Colorimetric methods for detection of sugars and related substances. Analytical Chemistry 28: 350-356.
â€¢ Ejechi, B.O., Ojeata, A., and Oyeleke, S.B. (2008). The effects of extracts of some Nigerian spices and bio deterioration of Okra (Abelmoschus (L) Moench by Fungi. Journal of Phytopathology, 145 (11-12): 468-476.
â€¢ Idah, P.A., Musa, J.J., and Abdullah, Mohammed. (2010). Effects of storage period on some nutritional properties of Orange and tomato. A.U. J. T., 13(1): 181-185
â€¢ Kast-Hutcheson, K., Rider, C.V., and Leblack G.A. (2001). The Fungicide Propiconazole inter ference with Embryonic development of the Crustacean Daphina magna. Environment Toxical Chem 20: 502-509.
â€¢ Lopez and Williams. (1981). Composition of Tomato In Tomato Production, Processing and Quality: 344-356.
â€¢ Nychas, G.J.E. (1995). Natural Antimicrobials from Plants. In Gould; G.W. (Ed) New method of food Preservatives: An uptake. Chapman and Hall, Glasglow: 58-59
â€¢ Pearson, D. (1976). The chemical Analysis of Foods, 7th edition, Churchhill Edinburgh U.K.
â€¢ Shilipi, Gupta, and Nissreen, Abu-Ghannan. (2011). Recent Development in the Application of seaweed extracts as a means for enchancing safety and quality attributes of food. In Most downloaded and Innovative food sciences and emerging technologies. Articles from Science verse Science Direct.
How to Cite
- Papers must be submitted on the understanding that they have not been published elsewhere (except in the form of an abstract or as part of a published lecture, review, or thesis) and are not currently under consideration by another journal published by any other publisher.
- It is also the authors responsibility to ensure that the articles emanating from a particular source are submitted with the necessary approval.
- The authors warrant that the paper is original and that he/she is the author of the paper, except for material that is clearly identified as to its original source, with permission notices from the copyright owners where required.
- The authors ensure that all the references carefully and they are accurate in the text as well as in the list of references (and vice versa).
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Attribution-NonCommercial 4.0 International that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
- The journal/publisher is not responsible for subsequent uses of the work. It is the author's responsibility to bring an infringement action if so desired by the author.