Green Coconut / Tender Coconut
Specifications (per 100ml):
Parameter | Standard Value | Importance |
Total Soluble Solids (TSS) | 5.0° – 6.5° Brix | Measures the concentration of dissolved sugars and minerals. |
pH Level | 4.5 – 5.2 | Slightly acidic; provides the refreshing “tang.” |
Total Sugars | 4.0% – 5.5% | Primarily glucose and fructose; sucrose increases as the nut matures. |
Potassium (K) | 250 – 300 mg | Primary electrolyte; supports heart and muscle function. |
Sodium (Na) | 20 – 40 mg | Essential for fluid balance. |
Magnesium (Mg) | 10 – 25 mg | Aids in energy production and muscle relaxation. |
Vitamin C | 2.2 – 3.7 mg | Natural antioxidant; levels drop as the nut matures. |
Caloric Value5 | 17 – 20 kcal6 | Low-calorie hydration compared to sodas or juices.7 |
General Physical Description:
- Appearance: Large, smooth, and globular to ovoid fruit. In its raw state, it is covered by a thick, fibrous green husk.
- Colour: Vibrant green is standard. Some dwarf varieties used for tender water may be bright yellow or orange (e.g., Chowghat Orange Dwarf).
- Size & Weight: Typically weighs between 0 kg to 2.5 kg. A high-quality nut should feel heavy for its size, indicating it is full of water.
- Internal Structure:
- Husk: Soft and moist, making up the bulk of the weight.
- Shell: At this stage, the shell is relatively thin and soft enough to be pierced easily.
- Kernel (Malai): Very thin, translucent, and jelly-like. As the nut matures, this “jelly” hardens into the white “meat” (copra).
- Yield: A single tender coconut typically yields 300 ml to 700 ml of water, depending on the variety and size.
Husked Coconut
Specifications (per 100g of Kernel):
Parameter | Standard Value | Importance |
Oil (Fat) Content | 33% – 35% | Fresh kernel; dried copra can reach $65\% – 70\%$ oil. |
Moisture | 45% – 50% | Higher moisture makes the fresh kernel susceptible to mold. |
Lauric Acid | 45% – 52% (of oil) | A medium-chain fatty acid valued for antimicrobial properties. |
Protein | 3.5% – 4.5% | Higher than most fruits, supporting muscle maintenance. |
Fibber | 9.0% – 12.0% | High dietary fiber aids digestion. |
Total Sugars | 5.0% – 7.0% | Lower than tender coconuts as sugar converts to oil during maturity. |
Caloric Value | 350 – 360 kcal | Highly energy-dense compared to other fruits. |
General Physical Description:
- Appearance: A hard, woody, oval-to-spherical brown shell covered in coarse, hairy fibers.1
- Size & Weight: Husked coconuts are categorized into specific size grades for trade:2
- Small (Liliput): 3$250\text{g} – 600\text{g}$
- Medium: 4$700\text{g} – 1,200\text{g}$ (Most common commercial size)5
- Large/Giant: $1,200\text{g} – 2,500\text{g}+$
- The “Slosh” Test: A high-quality mature nut must produce a distinct sloshing sound when shaken. A hollow sound or no sound indicates that the liquid endosperm (water) has evaporated or leaked, signaling an old or cracked nut.
- The Eyes: One of the three eyes is soft.6 This area should be dry and free from mold or “wetness,” which indicates internal spoilage.7
Coconut Powder
Specifications:
Parameter | High Fat (Standard) | Low Fat (Defatted) |
Oil Content | Min $60\% – 65\%$ | $35\% – 45\%$ |
Moisture | Max $3.0\%$ | Max $3.0\%$ |
Free Fatty Acids (FFA) | Max $0.3\%$ | Max $0.3\%$ |
Total Ash | Max $2.5\%$ | Max $2.5\%$ |
Protein | $\approx 6.0\% – 7.0\%$ | $\approx 15\% – 20\%$ |
Sulphur Dioxide ($SO_2$) | Max $50$ ppm | Max $50$ ppm |
General Physical Description:
- Appearance: A free-flowing, crisp, and grainy powder or shred.4 It must be a natural, clean white; any yellowing or “off-white” tint indicates oxidation or old stock.5
- Texture: Crisp and slightly oily. It should not be “cheesy” (soft) or “smoky” (brittle/burnt).6
- Aroma: Fresh, sweet, and characteristic of coconut.7 It must be free from any soapy, rancid, or fermented odours.
- Grades (Particle Size):
- Fine: Small particles ($<1.40\text{ mm}$); feels like a coarse flour. Used for cookies and fillings.
- Medium: Larger shreds ($1.40\text{ mm} – 2.80\text{ mm}$); provides a distinct chew. Used for macaroons and toppings.8
- Fancy/Shredded: Long flakes or chips used for decoration.
Coconut Cream
Specifications:
Parameter | Coconut Milk | Coconut Cream | Cream Concentrate |
Fat Content | $10.0\% – 19.9\%$ | Min 20.0% | Min 29.0% |
Total Solids | $12.7\% – 25.3\%$ | $25.4\% – 37.3\%$ | Min 37.4% |
Non-Fat Solids | Min $2.7\%$ | Min 5.4% | Min 8.4% |
Moisture | Max $87.3\%$ | Max 74.6% | Max 62.6% |
pH Level | Min $5.9$ | Min 5.9 | Min 5.9 |
General Physical Description:
- Appearance: A rich, creamy-white liquid. At temperatures below 20°C, it may partially solidify or thicken significantly due to its high saturated fat content.
- Consistency: Smooth and uniform. It should be “spoonable” or “clinging” rather than thin and pourable.
- Colour: Pure white to ivory. A greyish or yellowish tint may indicate enzymatic browning or poor processing.
- Flavour & Aroma: A clean, sweet, and nutty coconut Flavour. It must be free from any soapy (rancid) or “cooked” (burnt) smells.
- Stability: High-quality cream is homogenized and stabilized to prevent the “oiling out” (separation of water and fat layers) often seen in natural extracts.
Coconut Water
Specifications:
Parameter | Tender Coconut Water | Mature Coconut Water | Importance |
Total Soluble Solids (TSS) | $5.0 – 6.5^\circ$ Brix | $3.5 – 5.0^\circ$ Brix | Measures dissolved sugars/minerals. |
pH Level | $4.5 – 5.2$ | $5.2 – 6.0$ | Acidity decreases as the nut matures. |
Total Sugars | $4.5\% – 5.5\%$ | $2.0\% – 3.0\%$ | Glucose/Fructose dominate young nuts; Sucrose in mature. |
Potassium (K) | $\approx 250$ mg/100ml | $\approx 350$ mg/100ml | Primary electrolyte for rehydration. |
Sodium (Na) | $\approx 25$ mg/100ml | $\approx 45$ mg/100ml | Aids in fluid balance. |
Protein | $\approx 0.1\%$ | $\approx 0.2\% – 0.3\%$ | Increases with age, contributing to turbidity. |
Vitamin C | $2.5 – 4.0$ mg/100ml | Trace | Highly sensitive to light and heat. |
General Physical Description:
- Appearance: Transparent and watery in young nuts. It becomes increasingly turbid (cloudy) as the nut matures due to the higher concentration of dissolved solids and proteins.
- Colour: Ideally Colourless or very pale white.
- Pinking: A common natural phenomenon where phenolic compounds oxidize, turning the water pink. This is a sign of enzyme activity but does not necessarily mean the water is spoiled.
- Browning: Indicates advanced oxidation or exposure to excessive heat during processing.
- Flavour Profile: * Tender: Sweet, refreshing, and slightly nutty.
- Mature: Less sweet, more acidic, and can sometimes have a slightly “woody” or fermented undertone.
- Viscosity: Low, similar to water ($1.0\text{ to }1.2\text{ cP}$ at room temperature).
Coconut Sugar
Specifications:
Parameter | Standard Value | Importance |
Sucrose Content | 70.0% – 85.0% | The primary sugar; lower than white sugar ($99\%$). |
Glucose & Fructose | 3.0% – 9.0% (each) | Natural reducing sugars that add to the complex Flavour. |
Moisture | Max 1.5% – 3.0% | Higher moisture makes it more prone to clumping (caking). |
Total Ash | 1.3% – 3.0% | Indicates mineral content; significantly higher than cane sugar. |
Inulin (Fiber) | $\approx$ 4.0% – 5.0% | A prebiotic fiber that contributes to the lower GI. |
pH Level | 6.0 – 7.8 | Varies depending on whether lime was added to the sap. |
Water Activity ($a_w$) | $\approx$ 0.400 | Low water activity inhibits microbial growth. |
General Physical Description:
- Appearance: Granular or crystalline structure, similar to brown sugar but with a slightly more varied grain size.
- Colour: Light golden-brown to a deep dark brown. The Colour depends on the duration of the heating process (caramelization) and the specific season of harvest.
- Texture: Fine-textured to semi-coarse granules. Premium grades are typically “Sortex-cleaned” for high uniformity.
- Aroma: Characteristic sweet, caramel-like, or butterscotch aroma. It should not smell “burnt” or “smoky.”
- Flavour: Subtly sweet with a deep caramel or nutty undertone. It is generally less intensely “sharp” than white refined sugar.
- Solubility: Highly soluble in both hot and cold liquids, making it a popular choice for beverages and baking.
Coconut Sugar
Specifications:
Parameter | Virgin (VCO) | Refined (RBD) | Importance |
Lauric Acid ($C_{12}$) | $45\% – 53\%$ | $40\% – 50\%$ | The primary “super-nutrient” antimicrobial fat. |
Moisture Content | Max $0.1\%$ | Max $0.1\%$ | Critical for preventing microbial rancidity. |
Free Fatty Acids (FFA) | Max $0.1\%$ | Max $0.05\%$ | Measures degree of fat breakdown (low is better). |
Peroxide Value | Max $3.0$ meq/kg | Max $1.0$ meq/kg | Measures primary oxidation (freshness). |
Iodine Value | $4.0 – 11.0$ | $7.0 – 11.0$ | Measures unsaturation; low value = high stability. |
Saponification Value | $235 – 265$ | $250 – 265$ | Indicates average molecular weight of fatty acids. |
Smoke Point | $177^\circ\text{C}$ ($350^\circ\text{F}$) | $232^\circ\text{C}$ ($450^\circ\text{F}$) | Refined oil is superior for deep-frying. |
General Physical Description:
- Appearance: Granular or crystalline structure, similar to brown sugar but with a slightly more varied grain size.
- Colour: Light golden-brown to a deep dark brown. The Colour depends on the duration of the heating process (caramelization) and the specific season of harvest.
- Texture: Fine-textured to semi-coarse granules. Premium grades are typically “Sortex-cleaned” for high uniformity.
- Aroma: Characteristic sweet, caramel-like, or butterscotch aroma. It should not smell “burnt” or “smoky.”
- Flavour: Subtly sweet with a deep caramel or nutty undertone. It is generally less intensely “sharp” than white refined sugar.
- Solubility: Highly soluble in both hot and cold liquids, making it a popular choice for beverages and baking.
Copra / Dry Coconut
Specifications:
Parameter | Edible Copra (Standard) | Milling Copra (Standard) | Technical Importance |
Moisture Content | Max 5.0% – 6.0% | Max 6.0% – 7.0% | Prevents spontaneous combustion and mold. |
Oil Content | Min 68% – 72% | Min 63% – 65% | Primary factor for oil extraction yield. |
Free Fatty Acids (FFA) | Max 0.3% – 0.5% | Max 0.8% – 3.0% | Measures fat breakdown; low is better. |
Crude Protein | $\approx$ 7% – 9% | $\approx$ 7% – 9% | Nutrient value in the remaining “press cake.” |
Aflatoxin | < 20 ppb | < 20 ppb | Critical safety limit for human/animal feed. |
Total Ash | Max 1.6% | Max 2.0% | Indicates mineral purity. |
General Physical Description:
- Appearance: Concave, cup-shaped pieces (Milling/Edible Copra) or whole round spheres (Ball Copra).
- Colour: * White/Off-White: Indicates high-quality sun-drying or hot-air drying.
- Brown/Smoky: Typical of kiln-drying or smoke-drying (common in milling grades).
- Texture: Hard, brittle, and slightly oily. High-quality copra should snap cleanly when broken; if it bends or feels “rubbery,” the moisture content is too high.
- Aroma: Mild, sweet coconut scent. Any smell of smoke, vinegar, or mustiness indicates poor drying or mold.
- Weight: Approximately 30 mature nuts are required to produce 5 kg of copra.