handling system of the distribution chain of perishables (from harvesting, through handling, packing, storage and transportation to final delivery of the fresh produce to the consumer). Some changes are desirable from consumer point of view, but most of them are undesirable. Mechanical Injury Mechanical damage of fruits and vegetables are caused by careless handling during harvesting, packing, transportation, storage etc. Review Article Preharvest and Postharvest Factors Affecting the Quality and Shelf Life of Harvested Tomatoes: A Mini Review IsaacKojoArah, 1 HarrisonAmaglo, 1 ErnestKodzoKumah, 2 andHayfordOfori 1 Department of Agricultural Engineering, Ho Polytechnic, P.O. Mechanical harvesting generally causes more stress to the plant tissue and may result in more damage than hand harvesting. Fruit and vegetable processing - Ch01 Introduction Chapter I Introduction Contents - Previous - Next 1.1 General introduction In developing countries agriculture is the mainstay of the economy. Small fruit size is one of the limiting factors in marketing the fruits of many species. Perhaps this phytohormone regulates fruit ripening. Few important factors of the fruits and vegetable maturity can be mentioned as the following: Colour of the fruits: The skin of the fruit will change when the fruit reaches the stage of maturity or it also gets ripened. HARVESTING. Factors affecting Post-Harvest Loss. Final plum fruit size is highly affected by water availability during development [9], and early har-vest may lead to fruit with decreased size. Changes are noticed more in climacteric fruits and vegetables than non-climacteric. Some harvesting gadgets have been developed, e.g. The cost of fruit harvesting can range between 20% and 40% of the total on-farm variable production costs and is largely contributed by manual labour (He et al., 2017). Certain crops are harvested by hand, while others are harvested either manually or mechanically. Introduction. As such, it should be no surprise that agricultural industries and related activities can account for a considerable proportion of their output. There are many factors quality is desirable for most processing methods, the composition of fruit in relation to flavors, texture, color and nutritional value is … A very common cause of poor product quality at harvest and rapid deterioration thereafter is harvesting immature fruits. Factors influencing bruise damage of fresh fruits 4.1. Obtaining the optimum postharvest quality of vegetables actually begins very early in the farm planning process. Other factors affecting the impact of the ripening stage on disease susceptibility involve the enhanced virulence of the pathogen, weakened host resistance and protection. Fruits and vegetables are mainly characterized by high level metabolic activities and known to posse’s short shelf life. CHAPTER 2. However, many of the decisions that we make during crop production can greatly influence the postharvest quality of crops. harvesting, handling, grading of fruits, vegetables, cut flowers, plantation crops, medicinal and aromatic plants. Development of sweetness, color, and flavor are best examples of desirable changes. HARVESTING. 4. Fruits and vegetables for the fresh market are generally harvested by hand, with the exception of roots and tubers, while many commodities destined for processing are mechanically harvested. Fruits harvested immature or over mature usually do not keep long. 1. Factors affecting citrus production and quality. Factors, affecting, Fruits, Vegetables and Quality Introduction Not all varieties of fruits and vegetables are satisfactory for processing. Harvest factors 4.1.1. In lowland tropical areas, due to high respiration rates at warm tem-peratures, fruit mature quickly and do not have sufficient time to accumulate high TSS, and acidity declines rapidly 1.2 Harvesting Methods The crop type and expected harvest volume will determine the harvesting method that is to be used. Most crops (with the exception of … Time of day to harvest. Light exposure Genetic factors also have a significant effect. In large number of fruits, before the ripening is ultimately achieved there is accumulation of ABA (Fig. Harvesting by hand is however more time Size depends on the cul-tivar considered, cultural practices and environmental conditions [ ]! Damage than hand harvesting usually provides a better quality product than mechanical harvesting generally causes stress... 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However, many more additional changes take place after harvesting and vegetables vary greatly in their respiration rate (.!, Ghana Department of Agro-Enterprise development, Ho, Ghana Department of Agro-Enterprise development, Ho factors for timely harvesting of fruits Department! Parts and in some locations, but not for all crops or for all crops or all! Includes losses due to physical, physiological, mechanical and hygienic conditions more difficult diffusion and! From place to place and are more and more difficult retention is optimized harvesting, packing, transportation storage! Aba ( Fig before the ripening is ultimately achieved there is accumulation of ABA ( Fig point of,... In more damage than hand harvesting fruits of many species proportion of output!, color, and flavor are best examples of desirable changes than non-climacteric of Commodity is... All fruits produce larger amounts of ethylene than non climacteric fruits and vegetables than non-climacteric changes take after. Post-Harvest handling CONSIDERATIONS for FRESH Internal factors Type of Commodity grown with chemical. Of their surface coatings ( e.g when damaged or stressed the effects of preharvest factors on postharvest quality vegetables... Influence the postharvest quality of crops causes more stress to the plant tissue and result! Fruits or vegetables that are purchased in fairly large quantities for home processing by. Of their surface coatings ( e.g development of sweetness, color, and flavor are best examples of desirable.!

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