ReviewArticle
Microbial and Parasitic Contamination of Vegetables in
Developing Countries and Their Food Safety Guidelines
Richard Osafo ,
1
Gadafi Iddrisu Balali ,
2,3
Papa Kofi Amissah-Reynolds,
4
Francis Gyapong,
5
Rockson Addy,
4
Alberta Agyapong Nyarko,
4
and Prince Wiafe
6
1
SchoolofHealthandLifeScience,UniversityoftheWestofScotland,Paisley,UK
2
DepartmentofeoreticalandAppliedBiology,KwameNkrumahUniversityofScienceandTechnology,Kumasi,Ghana
3
DepartmentofSciences,SDACollegeofEducation,Agona-Ashanti,Ghana
4
DepartmentofBiologicalSciencesEducation,CollegeofAgricultureEducation,
AkentenAppiah-MenkaUniversityofSkillsTrainingandEntrepreneurialDevelopment,Mampong-Ashanti,Ghana
5
DepartmentofBiochemistry,CellandMolecularBiology,UniversityofGhana,Legon,Accra,Ghana
6
DepartmentofPhysiology,CollegeofHealthScience,UniversityofGhana,KorlebuCampus,Accra,Ghana
Correspondence should be addressed to Gadafi Iddrisu Balali; balaligadafi@gmail.com
Received 30 January 2022; Revised 12 July 2022; Accepted 1 September 2022; Published 27 September 2022
Academic Editor: Efstathios Giaouris
Copyright©2022RichardOsafoetal.isisanopenaccessarticledistributedundertheCreativeCommonsAttributionLicense,
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
e safety of humans is of paramount importance in the vegetable production chain. Evidence of microbial and parasitic
contamination of these products poses a great threat to consumers. is is an emerging issue the world is battling, and it is still in
the process of unravelling. However, one of the contributing factors responsible for the rapid spread of these pathogens to millions
ofpeopleamongotherfactorsisthedistributionoffoodinourfoodsystems.epurposeofthisstudywastodrawtheattentionof
producers, retailers, consumers, and various stakeholders to the occurrence and potential hazard of these organisms, their
contamination origin, and food safety protocols. Among the food system, vegetables play a major role, and their consumption has
increased as they form a larger portion of daily diets. is urge for healthy diets coupled with changing dietary habits and human
population explosion has therefore accelerated their production. is has resulted in parasitic and microbial contamination
gaining grounds in salad vegetables, and as such, a wide range of microbes such as EscherichiacoliO157:H7, Listeriamono-
cytogenes, Salmonella spp., Shigella, and Staphylococcus, and parasites such as Giardia lamblia, Entamoeba coli, Entamoeba
histolytica, Cystoisosporabelli, Toxoplasmagondii, Trichuristrichiura, and Ascarislumbricoides have been isolated from them.
erefore, major routes for salad vegetable contamination and prevention methods have been pointed out in this review article.
e topic of protective countermeasures will also be covered here in this review. Notwithstanding, several control measures have
been reported to be effective and efficient in removing or eliminating pathogens, including treatment of irrigation water and
fertilizers, use of disinfectants like vinegar and saltwater, irradiation, ozone, and bacteriophages. ough consumption of
vegetables and salads is encouraged due to their nutritional advantage, appropriate systems should be put in place to ensure
their safety.
1. Introduction
In recent years, there has been an upsurge in vegetable
production and consumption throughout the whole world;
this is said to be twice its initial production weight of 30
million metric tons in 2018 [1]. In developing countries like
Ghana, the initiation of programmes such as the current
“Planting for Food and Jobs” by the Government of Ghana
has expanded the mass production of fresh vegetables [2].
is was anticipated to increase vegetable consumption by
roughly 25% by 2020 [3]. Hence, the consumption of vege-
tables globally has increased due to their relatively low cost,
high nutritious value, and convenience in preparation.
Vegetables are either eaten raw or cooked, and are essential in
human nutrition as a result of their nutrient composition such
as dietary fibre, minerals (like iron, calcium, zinc, magnesium,
Hindawi
Journal of Food Quality
Volume 2022, Article ID 4141914, 24 pages
https://doi.org/10.1155/2022/4141914