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Pineapple
Harvest - Post Harvest
 

Sorting, grading and standards

 

Pineapples are selected or sorted manually according to the quality criteria agreed upon by the people involved in the trade. It is a common practice to grade pineapple based on variety, weight, shape, maturity and other factors. Prices are influenced mainly by variety and fruit size. The method is very subjective and can vary according to market or location. It is therefore important to incorporate proper grading and standardisation in pineapple handling especially for export. Worldwide Codex Standard for Fresh Pineapple (Codex Stan. 182 – 1993) provide some standard guideline for pineapple.

   

 

Packaging

 

In most countries , pineapple harvested from the field for local and overseas markets are normally heaped onto lorries without using any containers. On arrival in wholesale markets, the fruit are transferred into bamboo or rattan baskets, stackable plastic containers or corrugated fibreboard (CFB) boxes. In Malaysia, CFB boxes with net weight of 10 kg have been used for export to West Asian countries including Saudi Arabia and United Arab Emirates (UAE). The fruits are arranged in a horizontal position in the box. The crown of each fruit is wrapped with perforated plastic sleeves to control water loss and wilting or yellowing of the crown. Each box contains fruit of uniform size and maturity. The base of the fruit can be lined with sponge to minimise mechanical injury in subsequent handling operations.

 

Storage

 

Most pineapple cultivars can normally be stored for 4-5 weeks at 8-10 °C. However, black heart (BH) disorder and post harvest diseases will shorten the storage life of fruits at low temperature.

BH, a physiological disorder, is considered the most critical problem in most pineapple producing countries including Australia, Philippines, the United States (Hawaii), Taiwan and Côte d'Ivoire. When pineapple fruits are exposed to low temperatures either in storage or in surrounding environment, characteristic symptoms of watery spots at the base of the fruitlets appear and these enlarge as severity increases. The symptoms are not detectable externally unless the fruits are cut and the flesh exposed. The disorder is induced at 5-20 °C, which covers the recommended temperature range for storage of pineapple.

 

Transportation

 
Fresh pineapple can be stored at 8-10°C for 4-5 weeks. The Malaysia experience indicate that the fruit can be exported without much problem to Asian markets including Hong Kong, Taiwan, Japan , Korea and West Asia. Pineapple is one of the very few fruits that can be exported to Japan in fresh form without any quarantine restrictions because it is not a host for fruit flies. The fruit can also be exported to Europe provided the total handling time from harvesting till marketing does not exceed 5 weeks. Fresh pineapples have been exported from Malaysia regularly by sea-reefers to West Asia since 1992.
 

Pre-packaging treatments

 

Pineapples are first cleaned of dirt, insects and any other foreign matter using blowers or brushes. The slips are removed and the peduncles are cut with a sharp knife to a length not exceeding 2 cm. This is in accordance to the requirement of the Codex Standard.

The fruit may also be cleaned through washing though this process delays operation as the fruit has to be dried before packing. Drying time can be reduced if dryers or blowers are used.

Ripe or bruised pineapples are highly susceptible to yeasty rot. During storage, the disease can also infect green fruit. Fresh pineapple is also susceptible to fruit rot caused by Ceratocystis paradoxa . The fruit shell becomes water-soaked and disintegrates and the underlying tissue become soft, watery and discoloured. Both diseases can be managed by careful handling to avoid mechanical damage to the fruit. For control of black rot, dipping the peduncle cut end in 500 ppm benomyl immediately after trimming will provide some control. 
 
 
 

 
 
 

Names
   

Scientific:

Ananas comosus

 

 

Common:

 

English:

Pineapple

Indonesia:

Nanas

Malaysia:

Nanas

Tagalog:

Piña

Thai:

Sapparot

Vietnam:

Dú'a/ Tho'm Khóm
Mandarin: Huangli
Tamil: Annaci palam
Laotian: Mahk nut
Khmer: Manoa
Burmese: Narnuthi

 

 

Taxonomic Position:

   

Domain:

Eukaryota

Kingdom:

Viridiplantae

Phylum:

Spermatophyta
Subphylum: Angiospermae

Class:

Monocotyledoneae

Order:

Commelinales

Family:

Bromeliaceae

 

 

 
 
 


Project Collaborators:

Common Fund for Commodities (CFC)

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