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Name Raisins
Biological Name Vitis vinifera L.

Raisins are dried grapes/currants. However, unlike fresh grapes, they indeed are rich and concentrated natural sources of energy, vitamins, electrolytes, and minerals. In general, fresh grapes either seedless or seed types of the Vinifera species, such as Thompson Seedless (Sultana), Sugarone, Calmeria, Corinthbetc., are subjected to sundry or in mechanical drying techniques. In some cases, the whole bunch of grapes may be allowed to dry in the vine itself (vine-dried). The moisture content should not exceed 16% of dry weight. Thoroughly dried raisins are further stemmed, cap-stemmed, sorted, and cleaned in order to obtain right quality, dried berries. At the commercial level, the berries are processed and graded further before sold in the markets.

In India, raisins are mostly produced in Sangli, Solapur and Nasik districts of Maharashtra, Bijapur district in Karnataka, and some parts of Tamil Nadu, Andhra Pradesh and Punjab. However major produce is derived from the state of Maharashtra and Karnataka in India.

Raisins are irreplaceable as a healthy member of the dry fruits category. These golden, green or black delicacies are favourites of almost everyone, particularly children. Raisins are widely used in cultural cooking around the world (especially in desserts), and are also added to health tonics, snacks and compact, high-energy food supplements for mountaineers, backpackers, and campers.

Raisins are obtained by drying grapes, either in the sun or in driers, which turns the grapes into golden, green or black gems. In fact, when their nutritional values and health benefits are considered, “gems” is a rather accurate name for them!

Types (Varieties) of Processed Raisins

Type I – Seedless.
Type II – Golden seedless.
Type III – Raisins with seeds.
Type IV – Sultana.
Type V – Zante currant.
Type VI – Mixed types or varieties.

Characteristics of Raisins
Specific gravity
at 13-15% moisture 1.4 -1.42
at 15-18% moisture 1.275
Weight per berry at 13-15% moisture 0.41-0.48gm
Water Activity at 25°C
at 13-15% moisture
at 15-18% moisture
Loose and tapped bulky density
Poured density 0.6-0.7g/ml
Tapped density 0.66-0.78g/ml
Quality Analysis of Physical Parameters For Indian Raisins
Parameter Codex Standard Limits found in Samples tested Indian sample size (%) complying to Codex standards Sample from USANo. 1 Sample from USANo. 2
Piece of stem / Kg 2 0-9 29.4** Nil Nil
Immature (%) 6 0.24-3.10 100 3.1 1.5
Damaged (%) 5 0.24-9.84 94.11** 3.8 1.8
Sugared (%) 15 0-15.54 94.11** 3.4 Nil
Moisture(%) 18 11.65-15.23 100 1.5 16.3
Piece of stem / Kg 2 0-9 29.4** Nil Nil
Quality Analysis of Chemical Parameters For Indian Raisins
Parameter Codex Standard Limits found in Samples tested Indian sample size (%) complying to Codex standards Sample from USANo. 1 Sample from USANo. 2
Arsenic BDL* BDL 100 BDL BDL
Mineral oil 5g/kg Nil 100 Nil Nil
SO2 (mg/Kg) 1500 51.2-128 100 Nil Nil
Sorbitol 5g/kg Nil 100 Nil Nil
Pesticide Residues BDL BDL 100 BDL BDL1
Colour contamination Nil Nil 100 Nil Nil
Nutritional Value Per 100 g (3.5 oz)
Energy 1,252 kJ (299 kcal)
Carbohydrates 79.18 g
Fat 0.46 g
Protein 3.07 g
Thiamine (B1) (9%) 0.106 mg
Riboflavin (B2) (10%) 0.125 mg
Niacin (B3) (5%) 0.766 mg
Vitamin C (3%) 2.3 mg
Calcium (5%) 50 mg
Iron (14%) 1.88 mg
Magnesium (9%) 32 mg
Chemical Properties
pH (2:1 dilution) 3.5-4.0
Acidity (as tartaric acid) 1.5-2.2%
Total reducing sugars 68-70g/100g
Glucose 31.7-33.1g/100g
Fructose 36.2-36.9g/100g
Sucrose 0.1g/100g
Fructose/Glucose 1.12-1.15
Health Benefits of Raisins
  • They are free of gluten toxin and can be consumed by people who do not tolerate gluten as an alternative healthy food
  • Raisins are dense sources minerals like calcium, iron, manganese, magnesium copper, fluoride, and zinc. Copper and manganese are an essential co-factor of antioxidant enzyme, superoxide dismutase. 100 g provides 23% daily requirement levels of iron.
  • In addition, they are rich in heart-healthy electrolyte potassium. 100 g provide 749 mg of potassium. Potassium reduces heart rate, blood pressure by countering sodium and thereby helps prevent stroke, CHD, and peripheral vascular diseases.
  • Furthermore, they are also good source of some B-complex vitamins such as thiamin, pyridoxine, riboflavin, and pantothenic acid.

We deal in the supply of the superior quality Raisins.

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