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Nata de Coco from Coconut Water or Milk

January 3rd, 2010 arnx No comments

NATA DE COCO FROM COCONUT WATER

Materials:

Coconut water
Acetic acid
Refined sugar
Nata starter
Ammonium phosphate

Equipments:

Weighing scale
Strainers
Wide-mouthed glass jars or basins Kettles

Procedure:

1. The collected coconut water is filtered through a cheesecloth. One hundred (100 gms.) refined sugar and 5 grams monobasic ammonium phosphate is mixed for every liter of coconut water in a container. The container is covered and the mixture allowed to boil. It is then allowed to cool after boiling and 6.9 ml. of glacial acetic acid is added.

2. 110-150 ml. of starter (available at ITDI, DOST) is added to the mixture. It is subsequently transferred to big mouthed clean jars leaving ample space atop mixture and covered with clean cheese cloth. The culture is allowed to grow at room temperature for 15 days or more. Note: Do not move jars during growth period.

3. Harvest is ready after 15 days or more, making sure that all conditions are aseptic so as to enable one to reuse the remaining liquid which serves as starter for succeeding preparations.

4. Dessert Making. The “nata” is cut into cubes and is subjected to a series of boiling with fresh water until acidity is totally removed. One kilo of refined sugar is added for every kilo of nata and are mixed. It is brought to boiling until the “nata” cubes become transparent.

NATA DE COCO FROM COCONUT MILK

Materials:

1 kilo Grated coconut
600 gms. Refined sugar
1/2 liter Coconut water
12 liters Ordinary water
2 liters Nata starter (available at ITDI, DOST)
325 c Glacial acetic acid (available in drugstores)

Procedure:

1. Extract the cream from the coconut, strain through a cheesecloth.

2. Mix all ingredients.

3. Transfer to big mouthed clean jars and allow around 2-3 inches in height of the liquid.

4. Cover with a clean cheesecloth. The culture is allowed to grow at room temperature for 15 days or more. Note: Do not move the jars during growth period.

5. Harvest is ready after 15 days or more, making sure that all conditions are aseptic so as to enable one to reuse the remaining liquid which serves as starter for succeeding preparations.

6. Dessert Making: The “nata” is cut into cubes and is subjected to a series of boiling with fresh water until acidity is totally removed. One kilo of refined sugar is added for every kilo of nata and are mixed. It is brought to boiling until the “nata” cubes become transparent.

Source: Technology developed by: ITDI (DOST)

HOW TO MAKE COOKING OIL FROM COCONUTS

December 31st, 2009 arnx No comments

For this purpose, a practical method for rural application and based on the subtractive method has been developed since it gives a high percentage of recovery of oil using ordinary household utensils. A detailed description of the process is as follows:

1. Grate the coconuts. Weigh the grated coconuts.
2. Press out the cream of the grated meat thru a cheesecloth. Set aside the cream.
3. To the residue of the first pressing, add approximately 1 liter of water per kilo of grated meat used, macerate thoroughly and hand press once more. Repeat procedure but reduce volume of water to only ¼ of that used in previous pressing.
4. Combine cream with the second and third extracts. Filter thru cheesecloth, measure the total volume and set aside.
5. Prepare a saturated salt solution by dissolving salt in water (37 g salt/100 mL water or approximately 2 cups salt in 1 L water). Filter.
6. To the measured combined extract, add saturated salt solution. Volume of salt solution added should be 10% of the volume of the combined extracts. Shake or stir thoroughly for 15 minutes. Transfer to a transparent settling container provided with a faucet or outlet at the bottom and allow the cream to separate for 30 minutes. Withdraw the lower layer, collect the cream and repeat the salt washing by replacing the same volume of water and saturated salt solution used in the first washing. Set aside salt washings.
7. Add water to the salt-washing cream (1:3) and shake or stir for 15 minutes. Stand for 30 minutes or until such time as to allow the cream to separate. Collect the cream and repeat the water washing.
8. Heat the water-washed cream until the “latik” turns brown. Filter again until clear oil is obtained.
Source: DOST, photo from:africanbraids.biz

NATA DE COCO (coconut water)

December 30th, 2009 arnx No comments

RAW MATERIALS:

1 kg. fresh coconut, grated
325 mL or 1¼ cups glacial acetic acid
600 g or 3 cups refined sugar
500 ml or 2 cups coconut water
12 L tap water
2 L nata starter*

PROCEDURE:

1. Mix grated coconut with water. Strain thru cheesecloth.
2. Add the rest of the ingredients and mix.
3. Pour the mixture into clean sterile fermenting basins or jars (2 inches depth). Set aside starter for use in 3-5 days.
4. Ferment for 12-14 days.
5. Harvest. Wash.
6. To cook it into a dessert:
- Cut nata into cubes or desired size.
- Boil in several changes of water until acidic taste or smell is completely removed.
- Cook in sugar at 1:1 ratio. If desired, add pineapple tidbits or nangka as flavorant.

NATA DE COCO (tap water)

RAW MATERIALS:

1 kg matured coconut, grated
400 ml glacial acetic acid
2 kg refined sugar
28 L tap water
5 L nata starter*

PROCEDURE:

1. Mix grated coconut with tap water. Strain through cheesecloth.
2. Mix the rest of the ingredients.
3. Stir to dissolve the sugar.
4. Pour into clean, sterile fermenting basins or plastic trays. Cover with clean paper.
5. Ferment for 8-10 days.
6. Harvest, remove scum, wash and cut into cubes or desired size.
7. Boil in several changes of water until acidic taste/smell is completely removed.
8. Cook in sugar at a 1:1 ratio (1 kilo sugar to 1 kilo nata or 3/4 kilo sugar to 1 kilo nata). Boil until nata cubes become transparent.

Source: DOST, you can also obtain your nata starter from the DOST, photo from:dcfoods.en.alibaba.com

DECORATIVE/NOVELTY WAX

December 30th, 2009 arnx No comments

MOLD MAKING – Silicon rubber mold

MATERIALS:

silicon rubber modeling tools
ice cream cup
catalyst
knife
basahan
modeling clay
blade cutter
small basin
petroleum jelly
scissors
plaster of paris
nylon brush

PROCEDURE:

A. Preparation of one-sided silicon rubber mold:

1. Prepare original model (preferably intricate designs such as animal figures, birds, fruits, etc.) and apply petroleum jelly to the surface of the model.
2. Put clay barricade around the prepare model with ½ of an inch allowance in every side. Set aside.
3. Prepare enough mixture of silicon. (Ratio: 100 grams of silicon + 5 ml of catalyst)
4. Using a stick, apply first coating of silicon mixture evenly to the surface of the model. Use only half portion of the silicon mixture.
5. When the first coating is almost dried up, apply the other half portion of the silicon mixture on the first coating of silicon.
6. Set aside and wait until the silicon mixture hardens like a rubber band. This will take about 1 to 2 hours.

B. Preparation of plaster backing – using Plaster of Paris:

7. Do not remove the clay barricade and model inside the silicon mold.
8. Prepare enough mixture of Plaster of Paris. (Ratio: 1 cup of water + 1½ cups of Plaster of Paris powder)
9. Sprinkle the Plaster of Paris into the container with water and let it stand for one to two minutes.
10. Stir until the mixture reach the consistency similar to that condensed milk or cream.
11. Pour and apply evenly the plaster mixture on top of silicon mold.
12. Wait for 6 minutes or until the plaster hardens.
13. Remove the clay barricade, then the plaster backing.
14. Invert the mold upside down and remove the model inside the silicon mold.
15. Trim with scissors the side of silicon rubber mold. Set aside for casting.

Moulding of decorative wax:

1. Melt 4 kilos of paraffin, 200 grams of polyethylene wax and 200 grams of crystal wax.
2. Prepare the silicon rubber mold. Remove all the impurities.
3. Put the silicon rubber inside the backing.
4. Pour the melted wax mixture into rubber mold.
5. Wait for 15 minutes or until the wax mixture thoroughly dries and becomes hardened.
6. Remove the formed wax from the rubber mold and trim with knife.
7. Paint with oil color, and then spray with acrylic gloss lacquer to make the object shiny.

Source: DOST, picture from:cgi.ebay.com

How to Make Ice Cream

December 18th, 2009 arnx No comments

Ice cream is a delicious frozen food that is a real treat when it’s homemade. Making ice cream at home can be a fun family project with a job for everyone. If you have a hand cranked or electric ice cream freezer, everyone can enjoy a tasty dessert right from the freezer.

The most important ingredients in ice cream are:

• Milk solids, often added as nonfat dry milk, give body to the mixture and allow better whipping.

• Cream, with its higher butterfat content, gives richness and smoothness.
• Eggs, acting as a stabilizing ingredient, provide good texture as well as flavor and the whites are a good whipping agent. Because of the risk of harmful bacteria in raw eggs, you must use pasteurized eggs in uncooked ice cream mix.
• Sugar gives sweetness and minimizes crystallization by lowering the freezing point temperature.
• Gelatin is a stabilizer that binds water to keep ice crystals small.
• Flavorings are added in small amounts and have no effect on the freezing process.
• Fruits are sugared and retard the freezing process, and thus should not be added until the mixture is about half frozen.

Equipment and Supplies

To make homemade ice cream, you need a variety of equipment, including ice, rock salt and a freezer. Metal freezers are preferred, but must be kept clean to prevent rusting. The capacity of the ice bucket should be about two gallons. The mix container will hold about one gallon. You will need at least 20 pounds of ice for each gallon of ice cream and about five pounds of rock salt.

Preparing the Mix

Pour liquid ingredients such as milk, cream or evaporated milk into a large mixing bowl. Whip eggs in separate bowl before adding. Always dissolve gelatin tablet in small amount of hot water. This helps assure dispersion throughout the mix. Dry sugar should be added to the liquid mix while stirring constantly. Unless you purchase all pasteurized ingredients, cook the mix. Use a double boiler to reduce cooking down caused by evaporation and stir continually. Heat to 155º F and hold for 30 minutes. Cool to 45º F or below by placing cold water, then ice water, in the lower part of the double boiler. Keep the ice cream mix covered to prevent bacterial contamination. Have the mix as cold as possible prior to freezing. This reduces time required to freeze and gives you a smoother textured product with fewer large ice crystals.

Use only clean utensils for handling mix. They should be sanitized with heat in the dishwasher or sanitized to destroy all bacteria. A dilute chlorine solution at 100 ppm (1/2 teaspoon bleach per quart of water) can be used for sanitizing.

Stabilizers and emulsifiers other than gelatin and eggs can be used. If so, mix with a little hot water in a cup. Then add to the mix, stirring thoroughly. Otherwise it settles, giving you a thick gummy ice cream at the bottom of the container.

Serving and Storing

Serve ice cream within a few hours of freezing for best results. If held for more than a few hours, keep product at temperatures well below 0º F. Freezing compartments in home refrigerators are seldom cold enough to harden ice cream properly. Temperatures approaching -20º F are ideal. If you plan to hold ice cream, keep it at -10º F or lower. It can be held for months at this temperature.

Vanilla Ice Milk (cooked, with eggs)

2 cups sugar
1 tablespoon unflavored gelatin
1 ½ cups nonfat dry milk
2 quarts whole milk
3 eggs, beaten (use only clean, uncracked eggs)
1 ½ tablespoons vanilla

1. Mix sugar, gelatin, nonfat dry milk and milk in the top of a double boiler. Cook over hot water to a temperature of 175º F.

2. Stir a little of the hot mixture into the beaten eggs, then stir the eggs into the remaining hot mixture.

3. Cook the entire mixture over hot water, while stirring constantly, for 1 minute.

4. Chill immediately by placing the top of the double boiler in ice water. Temperature of the ice milk mix should be 50º F before removing the mix. Add vanilla. Alternately, use pasteurized eggs, omitting steps 1-4 and simply mix dry ingredients (sugar and dry milk) with milk, cream and vanilla. Dissolve gelatin in ¼ cup of hot water. Add to mix and continue with step 5.

5. Pour into a 1-gallon ice cream canister; fill no more than two-thirds full. Refrigerate.

6. Freeze in a handcranked or electric ice cream freezer, packed with a mixture of 1 part rock salt and 6 parts crushed ice. Continue to freeze until the motor starts to labor or resistance is met when cranking.

7. Remove dasher and serve immediately.

This recipe makes 20 half-cup servings (about 2 ½ quarts).
Calories per serving: Approx. 150

Vanilla Ice Cream (cooked, with eggs)

2 cups sugar
2 teaspoons unflavored gelatin
¾ cup nonfat dry milk
1 quart pasteurized whole milk
3 cups whipping cream
4 eggs, beaten (use only clean, uncracked eggs)
2 tablespoons vanilla

1. Mix sugar, gelatin, nonfat dry milk, milk and cream in the top of a double boiler. Blend and heat over hot water until the temperature reaches 175ºF.

2. Stir a small amount of the hot mixture into the beaten eggs, then stir the eggs into the remaining hot mixture.

3. Cook the entire mixture, while stirring constantly, 1 minute longer.

4. Chill immediately by placing the top of the double boiler in ice water. Temperature should be 50ºF before removing from the ice water. Alternately, use pasteurized eggs, omitting steps 1-4 and simply mix dry ingredients (sugar and dry milk) with milk, cream and vanilla. Dissolve gelatin in ¼ cup of hot water. Add to mix and continue with step 5.

5. Pour into a clean ice cream freezer; fill no more than two-thirds full. Refrigerate 3-4 hours or overnight.

6. Freeze in a handcranked or electric ice cream freezer. Pack the outer shell with a mixture of 1 part rock salt and 6 parts crushed ice. Continue the freezing process until the motor labor or stiff resistance is met while cranking.

7. Remove dasher and serve immediately.

This recipe makes 20 half-cup servings (about 2 ½ quarts).
Calories per serving: Approx. 230

Vanilla Ice Cream (uncooked, no eggs)

3 cups pasteurized heavy cream
4 cups pasteurized whole milk
1 ½ cups instant nonfat dry milk
1 ½ cups sugar
1 tablespoon gelatin dissolved in ½ cup of hot water
1 tablespoon vanilla

1. Mix cream, milk, dissolved gelatin and vanilla into a large mixing bowl. Add dry milk and sugar.

2. Pour into a clean ice cream freezer; fill no more than two-thirds full. Refrigerate 3-4 hours or overnight.

3. Freeze in a handcranked or electric ice cream freezer. Pack the outer shell with a mixture of 1 part rock salt and 6 parts crushed ice. Continue the freezing process until the motor labor or stiff resistance is met while cranking.

4. Remove dasher and serve immediately. Yield: 1 gallon

Source: This publication replaces B2766 Homemade Ice Cream and Ice Milk (1984) by Robert Bradley (retired) and Mary Mennes (retired). Revisions by Steve Ingham. Information included from Making Ice Cream at Home (A76) Circular 566. Pennsylvania State University (out of print). Designer and Editor: Christine Morris, Outreach Specialist, July 2003., www.wisc.edu; photo from:www. content.answers.com