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Research Article Open access CC BY 4.0

Antimycotic Potential of Alum on Postharvest Deterioration of Tomato

Lawrence O. Amadi, Eunice J. Udoh, Rebecca U. Thompson, Ruth G. Benjamin, Felicia W. Nmom

Microbiology Research Journal International · pp. 1–10 · Published 2 Nov 2019

10.9734/mrji/2019/v29i330165

Abstract

Tomato (Solanum lycopersicum) is one of the most economically attractive and widely consumed vegetables globally. Their high water content, perishability, transport and poor storage system predisposes them to spoilage by a broad spectrum of mycoflora resulting in huge postharvest losses. This study investigates antimycotic potential of alum on postharvest deterioration of tomato. Composite samples of deteriorating tomatoes were subjected to standard mycological analysis from which total fungal colony counts obtained ranged from 1.64x106-5.70x109 CFU/g, and the following species were identified; Aspergillus niger, A. flavus, Fusarium sp, Penicillium sp, Rhizopus stolonifer, Geotrichum candidium and Saccharomyces cerevisiae. In vitro antimycotic activity of alum (1% (w/v) concentration) was determined on some of the isolates by agar well method (AWM) and diameter of inhibition zone (DIZ) measured using a metre rule. G. candidum had the highest DIZ (9.0mm (29.0%) followed by A. niger (8.0 mm (25.8%) and 7.0mm (⁓ 22.6%) for Fusarium and Penicillium species respectively. R. stolonifer showed no inhibition or zero. pH values increased from 4.35-4.52 whereas TTA values decreased from 0.13-0.07 within 2days of analysis. However, these results indicate that treatment of postharvest deteriorating tomatoes with alum prior to consumption would enhance food safety as some of these fungi are known to be spoilage, toxigenic or opportunistic pathogens. So, their presence raises concern on storability as well as public health risks associated with consumption of these fruits. Therefore, production of tomato requires an integrated and multidisciplinary research approach not only to reduce economic loss but also create consumers’ awareness on potential public health hazards of consuming relatively cheaper and pathogen contaminated deteriorating tomatoes.    

Postharvest alum mycotoxin tomato inhibition antimycotic deterioration.

References (28)

  1. 1 Impact of mycotoxins on humans and animals [DOI]
  2. 2 Microbiological Spoilage of Fruits and Vegetables [DOI]
  3. 3 Food Spoilage: Microorganisms and their prevention
  4. 4 Recent Trends in Microbiological Safety of Fruits and Vegetables [DOI]
  5. 5 Effects of variety on the quality of tomato stored under ambient conditions [DOI]
  6. 6 Tomato-A Natural Medicine and Its Health Benefits
  7. 7 Vectors and conditions for preharvest contamination of fruits and vegetables with pathogens capable of causing enteric diseases [DOI]
  8. 8 Tomato Consumption and Health: Emerging Benefits [DOI]
  9. 9 Isolation and identification of some fruit spoilage fungi: Screening of plant cell wall degrading enzymes [DOI]
  10. 10 Isolation and identification of fungi associated with spoilt fruits vended in Gwagwalada market, Abuja, Nigeria [DOI]
  11. 11 Tomato Value Chain in Nigeria: Issues, Challenges and Strategies [DOI]
  12. 12 Characterization of food spoilage fungi by FTIR spectroscopy [DOI]
  13. 13 Genotypic Variation in Tomatoes Affecting Processing and Antioxidant Attributes [DOI]
  14. 14 Effects of preharvest treatment, disinfections, packaging and storage environment on quality of tomato [DOI]
  15. 15 Survey of the post harvest diseases and aflatoxin contamination of marketed pawpaw fruit (Carica papaya L) in South Western Nigeria [DOI]
  16. 16 Effect of storage methods and ripening stages on postharvest quality of tomato (Lycopersicom esculentum Mill) cv. Chali.
  17. 17 Microorganisms causing post harvest tomato (solanum lycopersicum l.) fruit decay in nigeria [DOI]
  18. 18 Biochemical properties of six varieties of tomato from Brong Ahafo region of Ghana as influenced by the ripening condition and drying [DOI]
  19. 19 Potassium Aluminium Sulphate (Alum) Inhibits Growth of Human Axillary Malodor-Producing Skin Flora in Vitro [DOI]
  20. 20 Formulation and evaluation of potash alum as deodorant lotion and after shaving astringent as cream and gel [DOI]
  21. 21 Identification of microorganisms responsible for spoilage of tomato (Lycopersicon esculentum) fruit
  22. 22 Effect of an alum-containing mouthrinse in children for plaque and salivary levels of selected oral microflora.
  23. 23 Shelf life and proximate composition of tomato (Solanum lycopersicum L.) fruits as influenced by storage methods [DOI]
  24. 24 Effect of packaging and chemical treatment on storage life and physicochemical attributes of tomato (Lycopersicon esculentum Mill cv. Roma) [DOI]
  25. 25 Effect of Organic Preservatives on Postharvest Shelf Life and Quality of Tomato Fruits during Storage [DOI]
  26. 26 Antimicrobial properties of hydrogen peroxide and potash alum alone and in combination against clinical bacterial isolates [DOI]
  27. 27 Preliminary Report on Diseases of Tomato in Choba, Rivers State. [DOI]
  28. 28 The Quality of Tomato (Lycopersicum esculentum Mill.) Stored on ZECC (Zero Energy Cool Chamber) [DOI]

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