Enhancing Textures: An Introduction to the Hydrocolloid Universe

With names like Ultra-Tex 3, Methocel F50, and agar agar, hydrocolloids sound like they’re meant for science fiction novels, not our pantries. However, these seemingly mysterious white powders are incredibly valuable in food development and can provide fun new textural experiences. Derived from natural sources (like seaweed, tapioca, and plant matter), hydrocolloids have been used for centuries to thicken foods and enhance textures. From spherification to stabilisation, hydrocolloids can help you make fancy foams, delicious gummy candies, and intriguing fluid gels.

Textural Measurement of Gelatine

Gelatine has become well established as a vital ingredient in many products, due to its multi-functional gelling, thickening, elastic and foaming properties.

A pure and naturally-sourced ingredient, gelatine is used to improve texture, appearance and sensory enjoyment. Selection of the correct gelatine and the right combination of gelling agents is vital to provide either soft, malleable textures or a smooth, firm end product, depending on application requirements. 

Texture tricks – using Hydrocolloids to create Textural Sensations

Texture is magical. The way a food “feels” affects the way we perceive its appearance, aroma and taste. 

And while manipulation of mouthfeel can seem mysterious, many tricks can help developers create and maintain the perfect texture – be it real or illusion. The following excerpts are from an original article written by R. J. Foster, and is a gem for those interested in the incorporation of hydrocolloids and their effect on texture. 

The texture effect  
Consumers rely on texture as an indicator for many different qualities of the foods they eat. Some textures might imply a lack of freshness: carrots that are soft or limp, bread that is hard, or a stick of chewing gum that crumbles...

Using Novelty Gels in New Food Product Development

Choosing the optimum texture analysis test method to measure your new texture creations

Exciting new food textures will be among the emerging trends over the next three years, together with more ‘playful’ products for adults and more widespread use of edible packaging, according to a leading food futurologist.

Successful chefs have realised that to be at the top of their game they need to create new culinary experiences using a combination of unusual tastes, textures and theatrical twists to give the eating experience a new multi-sensory dimension. This is enabled by a variety of new high-tech equipment, adjusted traditional preparation techniques and a handful of clever chemicals. The myriad of gelling ingredients available to formulate such texturally amazing products is endless which means there is virtually no limit to the vast variety of food products that can be configured.

Gels and Films Texture Measurement and Analysis

The measurement of gel strength and film properties is of widespread interest in the manufacture of pharmaceutical, medical and cosmetic products. 

Gel strength is a measure of the ability of a colloidal dispersion to develop and retain a gel form. Other gel properties such as elasticity and rupture force of, for example, pectin, gelatine, agar etc. are important in the development of such products as coronary stents where hydrogel polymers are selected due to their soft, rubbery nature which gives them a strong, superficial resemblance to living, soft tissue.