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Nata de coco

nata de coco · Nata

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Nata de coco is a chewy, translucent dessert gel. It is cut from a cellulose pellicle that acetic acid bacteria grow on the surface of mature coconut water, then cleaned, boiled and usually stored in syrup.

Translucent nata de coco cubes in light syrup in a plain white ceramic bowl.

What it is

Nata de coco is a dessert made from bacterial cellulose. A pellicle grows on the surface of coconut water, and the cleaned pieces are chewy and translucent. The cellulose is the material that is eaten. Acetic acid is a by-product of the bacteria's growth.

The name refers to the dessert. The pellicle is the fermented material. Harvesting, washing, cutting, boiling and syrup treatment belong to the finishing stage, which is separate from the growth stage.

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Substrate and culture

The substrate is mature coconut water with sugar. Laboratory work adds yeast extract as a nitrogen source. The 2015 study names Gluconacetobacter xylinum for its isolate. Older literature uses Acetobacter xylinum, which current nomenclature places under Komagataeibacter xylinus.

Isolates differ. In a 2022 comparison of three Komagataeibacter strains from nata de coco culture, two produced cellulose and one did not. So the name of a species does not establish which organism a given batch contains.

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Where it comes from

The 2024 review associates nata products with the Philippines. That is a reported association. It does not establish a birthplace, an invention date or a single inventor, and no transmission history was inspected.

The historical article on the nata organism is catalogued from the 1960s. Its full text was not readable in the source review, so its contents are not used here.

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Growing the pellicle, as the laboratory batch did

The 2015 laboratory batch started with a culture grown in nutrient broth, harvested by centrifugation and washed. The medium was mature coconut water with sucrose and yeast extract, autoclaved, cooled and adjusted to pH 5.5 with acetic acid. The culture was added at 2.0 x 10^7 cells per mL and held static at 30 degrees C for 14 days in a shallow vessel. The reported result was 250 g per litre of wet cellulose.

This batch is a laboratory experiment. It is not a validated household method, and no source gives a household endpoint.

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Finishing the dessert

The 2015 batch washed the harvested pellicle in running water, diced it, boiled the cubes for 15 minutes and drained them. The cubes were then soaked in syrup at 72 Brix. One dessert variant adds a pigment and vanilla at the final boil.

Storage in sterilized containers at room temperature is described. It gives no validated shelf life, and boiling and syrup are not a safety check.

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Uses

The review describes nata as a chewy jelly used in desserts, candies, ice cream, drinks, puddings and fruit cocktails. These are present-day uses in the review, not a historical record of each one.

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Open questions and safety

No validated household recipe exists in these sources. They give no household shelf life, no storage method that has been tested, and no endpoint a cook can check.

A food-process specialist must review any household method, including the culture, cleaning, acidity, storage and finished product. Smell, taste and appearance do not establish safety.

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History

The 2024 review associates nata de coco with the Philippines. No source inspected gives a birthplace, invention date or single inventor. A 1967/1969 Philippine Journal of Science article on the nata organism is catalogued, but its full text was not readable in the source review.

Ingredients

Scaling: source batch only

Coconut waterMature coconut water, the substrate for the pellicle.
1 L
one litre in the 2015 laboratory batch
SucroseDissolved in the coconut water.
10 g
per litre, laboratory batch
Yeast extract (laboratory medium)Added to the medium in the laboratory batch.
5 g
per litre, laboratory batch; not a validated household ingredient
Acetic acid (to pH 5.5)Used to adjust the medium to pH 5.5 before inoculation.
amount not stated
Komagataeibacter xylinus cultureCellulose-producing acetic acid bacteria, added aseptically to the cooled medium. The 2015 batch used 2.0 x 10^7 cells per mL.
Amount not stated
laboratory inoculum; isolates differ in cellulose production

Method

Risks and precautions · Standard risk
Uncontrolled spoilage

No validated household shelf life or storage method is given. The 2015 paper mentions room-temperature storage in sterilized containers without a validated period.

Hazard source

No validated household method. The laboratory batch used a named isolate, autoclaving and aseptic handling.

Smell, taste, acidity and appearance do not establish safety.

Isolates of the cellulose-producing bacteria differ, so one culture does not describe every nata.

  1. Use mature coconut water as the substrate. Add sucrose and, in the laboratory batch, yeast extract.
  2. Autoclave the medium, cool it, and adjust it to about pH 5.5 with acetic acid.
  3. Inoculate the cooled medium aseptically with the cellulose-producing bacteria.
  4. Incubate statically at about 30 degrees C for 14 days, so the pellicle grows at the liquid surface.
  5. Lift the pellicle, filter it, and wash it in running water before dicing.
  6. Boil the cubes for 15 minutes, drain them, and soak them in syrup, as the dessert stage describes.

Conditions

Fermentation14 days
Temperature30°C
Temperature controlIncubated

Places

Philippines

Documented use · Country evidence

The 2024 review associates nata products with the Philippines. This is a reported association, not a proven birthplace or invention date.

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