Sunday, 22 April 2012

Thickening and gelling agents

We are aware of a just few gelling and thickening agents that are present out there. every agent has its particular properties like withstanding temperatures, thickening powers, sources of origin etc..
"TEXTURE a hydrocolloid recipe collection" edited by Martin Lersch. is an amazing free e-book for all those popping questions and recipes.
you can click here to get it now .

What ingredients should i have?

There are a huge verity of ingredients you can play around with but some of them which are used in kitchen are:
Lecithin
Calcium lactate
Sodium citrates
Alginic acid
Sodium alginate
Potassium alginate
Ammonium alginate
Calcium alginate
Agar
Carrageenan
Processed eucheuma seaweed
Locust bean gum (Carob gum)
Guar gum
Tragacanth
Acacia gum
Xanthan gum
Karaya gum
Tara gum
Gellan gum
Glycerol
Konjac
Pectins
Gelatine
Methyl cellulose
Hydroxypropyl cellulose
Hydroxy propyl methyl cellulose
Carboxymethyl cellulose
Sucrose esters of fatty acids
Sucroglycerides
Monosodium glutamate
Disodium inosinate
Maltol
Isomalt
Invertase
Dextrin
Transglutaminase

What is all this fuss about molecular gastronomy??

A lot of us are fascinated by the concepts of of molecular gastronomy, but some how we fail to understand the true worth of this science. Molecular gastronomy is not just playing with ingredients and preparing food that seems ravishing.. It is mostly about understand the food and experience we can have or we can give to the diner. a simplest of a preparation can me modified or re constructed to give it that BOOM factor.

Example: Mojito cocktail.
Traditionally, a mojito is a cocktail that consists of five ingredients: white rum, sugar (traditionally sugar cane juice), lime juice, sparkeling water and mint ( courtesy wikepedia) .This would be a guest expectation on ordering a Mojito from a bar, its a simple but a beautiful way to glass a cocktail. Now what if can reconstruct it in a different way...



RECIPE

INGREDIENTS
1tsp (5gms)sugar
3 lime wedges
12 leaves of fresh mint
1 1/2 oz(60ml) white rum
1/4 cups (60 ml) club soda
a dash lime juice
2 cups(450 ml) Distilled water
1.25 gms calcium lactate
2 gms sodium alginate

METHOD
1, In am mixing glass, put calcium lactate, sugar, lime wedges and mint leaves.
2, Mix and crush using a pestle
4, Put small mint leaves in small round molds.
5, Filter mix and fill up moulds with it. freeze.
6, In a bowl, dissilve the sodium alginate in 2 cups of water with a hand blender or an eggbeater. set aside 15 mis
7, Unmold the pieces in the sodium alginate bath and set aside 3 mis
8, Pick up the raviolis thus formed with a pierces spoon and riense them in water bowl.
9, serve the raviolis on testing spoons.

This method of creating spheres out of liquid is called as Spherification. Spherification is a culinary process of shaping a liquid into spheres with liquid filled center and a gel like exterior casing (as in a egg yolk). The technique was originally discovered by Unilever in the 1950's and brought to the modernist cuisine by the creative team of elBulli under the direction of executive chef Ferran Adria 
There are two main methods for creating such spheres, which differ based on the calcium content in the product to be spherified. For substances containing no calcium, the liquid is mixed with sodium alginate, and dripped into a cold solution of calcium chloride orcalcium carbonate. Reverse spherification, for use with substances which contain calcium, requires dripping the substance into an alginate bath.