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APPENDIX V: PROPOSED DRAFT CODEX STANDARD FOR TIQUISQUE (WHITE AND LILAC)[44] (At Step 5/8)

1. DEFINITION OF PRODUCE

This standard applies to the tubercles of commercial varieties of white and lilac tiquisques grown from, Xanthosoma violaceum Schott (lilac) and Xanthosoma sagittifolium (L. ) Schott (white) of the Araceae family, to be supplied fresh to the consumer, after preparation and packaging. Tiquisques for industrial processing are excluded[45].

2. PROVISIONS CONCERNING QUALITY

2.1 Minimum Requirements

In all classes, subject to the special provisions for each class and tolerances allowed, the tiquisques must be:

- whole, without cuts exposing the flesh;

- firm;

- sound, produce affected by rotting or deterioration such as to make it unfit for consumption is excluded;

- clean, practically free from any visible foreign matter, except permitted substances used to prolong their shelf life;

- practically free from signs of sprouting;

- practically free from mechanical damage and bruising;

- practically free from pests affecting the general appearance of the produce;

- practically free from damage caused by pests;

- free from abnormal external moisture, excluding condensation following removal from cold storage;

- free from any foreign smell and/or taste[46];

2.1.1 The tiquisques must have been carefully harvested and have reached an appropriate degree of physiological development in accordance with criteria proper to the variety and/or commercial type and to the area in which they are grown.

The development and condition of the tiquisques must be such as to enable them:

- to withstand transport and handling, and
- to arrive in satisfactory condition at the place of destination.

2.2 Classification

Tiquisques are classified into three classes defined below:

2.2.1 "Extra" Class

Tiquisques in this class must be of superior quality. They must be characteristic of the variety.

They must be free from defects, with the exception of very slight superficial defects, provided these do not affect the general appearance of the produce, the quality, the keeping quality and presentation in the package.

2.2.2 Class I

Tiquisques in this class must be of good quality. They must be characteristic of the variety.

The following slight defects, however, may be allowed, provided these do not affect the general appearance of the produce, the quality, the keeping quality and presentation in the package:

- slight defect in shape;
- scarring, provided this does not cover more than 20% of the surface area;
- scraped areas provided these do not exceed 20% of the surface area.
The defects must not, in any case, affect the flesh of the produce.

2.2.3 Class II

This class includes tiquisques which do not qualify for inclusion in the higher classes, but satisfy the minimum requirements specified in Section 2.1 above.

The following defects may be allowed, provided the tiquisques retain their essential characteristics as regards the quality, the keeping quality and presentation in the package:

- defect in shape;
- scarring, provided this does not cover more than 30% of the surface area;
- scraped areas provided these do not exceed 30% of the surface area.
The defects must not, in any case, affect the flesh of the produce.

3. PROVISIONS CONCERNING SIZING

Size is determined by the weight in accordance with the following table:

Size code

Weight (gramms)

A

150-249

B

250-349

C

350-450


In all three sizes, tiquisques must have a length of between 100 and 300 mm and a diameter at narrowest cross-section of 45 to 70 mm.

4. PROVISIONS CONCERNING TOLERANCES

Tolerances in respect of quality and size shall be allowed in each package for produce not satisfying the requirements of the class indicated.

4.1 Quality Tolerances

4.1.1 "Extra" class

Five percent by number or weight of tiquisques not satisfying the requirements of the class, but meeting those of Class I or, exceptionally, coming within the tolerances of that class.

4.1.2 Class I

Ten percent by number or weight of tiquisques not satisfying the requirements of the class, but meeting those of Class II or, exceptionally, coming within the tolerances of that class.

4.1.3 Class II

Ten percent by number or weight of tiquisques satisfying neither the requirements of the class nor the minimum requirements, with the exception of produce affected by rotting or any other deterioration rendering it unfit for consumption.

4.2 Size Tolerances

For all classes, ten percent by number or weight of tiquisques corresponding to the size immediately above or below the size indicated on the package.

5. PROVISIONS CONCERNING PRESENTATION

5.1 Uniformity

The contents of each package must be uniform and contain only tiquisques of the same origin, variety and/or commercial type, quality and size.

The visible part of the contents of the package must be representative of the entire contents.

5.2 Packaging

Tiquisques must be packed in such a way as to protect the produce properly.

The materials used inside the packages must be new[47], clean and of a quality such as to avoid causing any external or internal damage to the produce. The use of materials, particularly of paper and stamps, bearing trade specifications is allowed provided the printing or labelling has been done with non-toxic ink or glue.

Tiquisques shall be packed in containers in compliance with the Code of Practice for the Packaging and Transport of Fresh Fruits and Vegetables (CAC/RCP 44-1995).

5.2.1 Description of Containers

The containers shall meet the quality, hygiene, ventilation and resistance characteristics to ensure suitable handling, shipping and preserving of the tiquisques. Packages must be free from all foreign matter or smell.

6. MARKING AND LABELLING

6.1 Consumers Packages

In addition to the requirements of the Codex General Standard for the Labelling of Prepackaged Foods (CODEX STAN 1-1985, Rev. 1-1991), the following specific provisions should apply:

6.1.1 Nature of Produce

If the produce is not visible from outside, each package should be labelled so as to the name of the produce and, may be labelled as to the name of the variety and/or commercial type.

6.2 Non-Retail Containers

Each package must bear the following particulars, in letters grouped on the same side, legibly and indelibly marked and visible from the outside, or in the documents accompanying the shipment[48].

6.2.1 Identification

Name and address of exporter, packer and/or dispatcher. Identification code (optional)[49].

6.2.2 Nature of Produce

Name of produce if the contents are not visible from the outside. Name of the variety and/or commercial type (optional).

6.2.3 Origin of Produce

Country of origin and optionally, district where grown, or national, regional or local place name.

6.2.4 Commercial Description

- Type (white or lilac);
- Class;
- Size (size code or minimum and maximum weight in grams);
- Net Weight (optional).
6.2.5 Official Inspection Mark (optional)

7. CONTAMINANTS

7.1 Heavy Metals

Tiquisques shall not exceed the maximum residue limits established by the Codex Alimentarius Commission for this commodity.

7.2 Pesticide Residues

Tiquisques shall not exceed the maximum residue limits established by the Codex Alimentarius Commission for this commodity.

8. HYGIENE

8.1 It is recommended that the product covered by the provisions of this standard be prepared and handled in accordance with the appropriate sections of the Recommended International Code of Practice - General Principles of Food Hygiene (CAC/RCP 1-1969, Rev. 3-1997), and other relevant Codex texts such as Codes of Hygienic Practice and Codes of Practice.

The product should comply with any microbiological criteria established in accordance with the Principles for the Establishment and Application of Microbiological Criteria for Foods (CAC/GL 21-1997)


[44] Commonly known in certain regions by Yautia, Malanga, Cocoyam, Tannia.
[45] Governments, when indicating the acceptance of the Codex Standard for Tiquisque (White and Lilac), should notify the Commission which provisions of the Standard would be accepted for application at the point of import, and which provisions would be accepted for application at the point of export.
[46] This provision allows for smell caused by conservation agents used in compliance with corresponding regulations.
[47] For the purposes of this standard, this includes recycled material of food-grade quality.
[48] Governments, when indicating their acceptance of this Codex Standard, should notify the Commission as to which provisions of this Section apply.
[49] The national legislation of a number of countries requires the explicit declaration of the name and address. However, in the case where a code mark is used, the reference "packer and/or dispatcher (or equivalent abbreviations)" has to be indicated in close connection with the code mark.

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