什么是食物质地?

Learn the basics of food texture and how it can be measured.

  • Testing the textural qualities of pizza with the Pizza Tensile Rig
  • The Back Extrusion test assesses the flow properties of honey
  • 用意大利面条拉伸钻机测试的意大利面条链
  • The crisp snap of a biscuit is quantified using the Three Point Bend Rig
Testing the textural qualities of pizza with the Pizza Tensile Rig1 The Back Extrusion test assesses the flow properties of honey2 用意大利面条拉伸钻机测试的意大利面条链3 The crisp snap of a biscuit is quantified using the Three Point Bend Rig4

So, what is Food Texture?


纹理是指那些品质的c的食物an be felt with the fingers, tongue, palate, or teeth. Foods have different textures, such as crisp crackers or potato chips, crunchy celery, hard candy, tender steaks, chewy chocolate chip cookies and sticky toffee, to name but a few.

Texture is also an index of food quality. The texture of food can change as it is stored, for various reasons. If fruits or vegetables lose water during storage, they wilt or lose their turgor pressure, and a crisp apple becomes unacceptable and leathery on the outside. Bread can become hard and stale on storage and this would be considered a deterioration in its textural quality.

Texture is one of the major criteria that consumers use to judge the quality and freshness of foods. Take gummy mashed potatoes, leathery dried apples, and limp celery. We spurn them all, because their texture – the way they feel on the tongue, lips, hard palate, or teeth – is off-putting. When a food produces a physical sensation in the mouth (hard, soft, crisp, moist, dry), the consumer has a basis for determining the food's quality (fresh, stale, tender, ripe). Sometimes, texture is the primary aspect of the food and the main focus of its acceptability.

食物texture is assessed by its ability to flow, bend, stretch or break and is often done subconsciously by the consumer. From a sensory perspective, the texture of food is evaluated when it is chewed. The teeth, tongue and jaw exert a force on the food, and how easily it breaks or flows in the mouth determines whether it is perceived as hard, brittle, thick, sticky, and so on.

We are incredibly sensitive to texture. Touch is of course the primary sense we use to determine it, but kinesthetics (the sense of movement and position), sound (crunch: good; squeak: bad) and sight are also involved. Sometimes it’s there and we don’t even think about it. Take a creme brûlée for example. It’s a baked custard with a burnt sugar top. Now imagine the creme brûlée without the crunch from the burned sugar. It’s a small detail that makes a significant difference despite the flavour.


食物Textural Properties and Mouthfeel – the Vocabulary of Food Texture


The term 'food texture' embraces a large number of textural characteristics which are identified and evaluated by the consumer in a well-defined order during mastication.

The term mouthfeel is a general term used to describe the textural properties of a food as perceived in the mouth. To people who study food and eating, there are some important variables known as texture and mouthfeel characteristics/properties, and they can make food appealing or not.

For example:
the crispiness of a potato chip from a newly-opened bag
春节联欢晚会选苹果或Bos的嘎吱嘎吱声c pear
新鲜烤面包的弹性
一块草莓液体的弹性
the chewiness of bubble gum
the firmness of jam
成熟的布里奶酪的传播性
the firmness of an old fashioned, New York style bagel

Whilst some food products are designed to have a ‘quick break’ with a crispy, snapping sound, others, such as gelled or products, have an expected flexibility/elasticity as part of their known textural characteristics.Subtle changes in a food product's formulation can change mouthfeel significantly. Simply taking out such ingredients as sugar, fat, gluten and adding an alternative can cause noticeable alterations in food texture and mouthfeel, making a formerly-good product unacceptable to consumers.


现实生活中的纹理分析雷竞技有效投注额应用

The Importance of Texture in Food


食物quality is an important concept, because the foods people choose depend largely on quality.

Consumer preference is important to the food manufacturer, who wants to gain as wide a share of the market for the product as possible. Quality is difficult to define precisely, but it refers to the degree of excellence of a food and includes all the characteristics of a food that are significant, and that make the food acceptable.

食物texture and the science of food structure is big business. Food manufacturers know all too well that, while the sensory spotlight may often fall on flavour when we’re savouring a mouthful, get the texture wrong and it’s game over – we’ll reject it outright. People take texture for granted until something is wrong with it.

世界上许多最大的食品制造商开始商业化其产品质地,并且越来越多的产品发布者拥有诸如柔软,奶油,光滑,松脆,耐嚼的产品声明。品牌可以通过质地创新两种方式来销售其产品。他们可以在产品中发挥现有的纹理或固有的纹理,也可以将纹理用作新产品发射中的重要点。

Extra crunchy, super crispy – texture descriptions have become more elaborate over the last few years along with increasing use of superlatives to convey “the ultimate texture experience”. It’s not just the words that are getting more elaborate – visual texture descriptions are also receiving more prominence on packaging, while the size of texture-evoking words is also increasing. Food texture has become more dominant due to bigger inclusions such as chunks, clusters and nuggets, more innovative shapes have evolved to help achieve extra crunch alongside the idea of providing a multitude of textures all at once, such as chewy, smooth and crunchy. Consumers are drawn to textures for experiences. A fun, new or novel experience is one of the driving reasons shoppers – especially young ones – are attracted to textures in products.

Once designed, however, the texture will need to be quantified in order to substantiate its food texture product claims such as 10% more spreadable, 20% crispier, 10% less sticky. Once launched, after it’s desired and bought, any new product will then survive only as long as the manufacturer is able to provide it at consistent quality to meet the consumer’s expectations. Production methods, changes during storage, processing parameters and potential ingredient substitution will all need to be considered as to their contribution to change in finished product texture. The market is exciting and playful but loyalty is key and quick to change so you’ll want to make sure that the product’ textural quality is optimally measured and monitored to minimise failure.

It is therefore essential that manufacturers invest in thorough physical product testing (texture analysis instrumentation) during the earlier stages of development and production to ensure efficiency, optimised recipes and most importantly, consumer satisfaction. More than ever before the food industry is finding itself forced, through outside pressures, to improve constantly its product quality and to maintain that quality at a consistently high level. Texture Analyser systems provide the means to measure this by evaluating mechanical and physical properties.


如何测量食物质地?


食品质地测量优化食品质量和客户满意度。

测量食物的质地涉及使用物理技术来客观评估食物质量,例如纹理分析。使用纹理分析仪对纹理的工具评估(纹理分析)进行,该纹理分析仪涉及在食物受到力时测量食物的响应,例如切割,剪切,剪切,咀嚼,压缩或拉伸 - 物理评估的类型 - 食物的类型消费者通过。提供了各种各样的食物纹理固定装置,可提供这种机械纹理分析的可能性。此类测试在食品工业中对于测量质地至关重要,尤其是对于食品的常规质量控制。

找到更多关于纹理分析器是如何工作的nd what a Texture Analyser measures

纹理分析仪are used to measure many properties, such as Hardness, Brittleness, Spreadability, Adhesiveness, Tensile Strength, Extensibility, etc, on a vast range of products.

为了回顾我们最常见的纹理特性,雷电竞app官方下载

The challenge confronting food designers who want to quantify mouthfeel characteristics using an instrumental technique: How to take instrument readings – measurements of forces, distances and other data that look like numbers from a physics experiment – and relate them to something meaningful and relevant to what people actually experience when they taste, chew and swallow a food product?

That's where Stable Micro Systems leads the way – we’re happy to help you develop the correct analysis routines for texture testing of your products.


什么是食物纹理分析?


It is the science we use to objectively measure the subjective mechanical characteristics of a food product.

我们使用纹理分析仪像消费或使用产品一样模仿或创建样本中的受控应力。纹理测量科学(工具纹理分析)属于流变科学(材料流科学)和材料科学的科学领域。

纹理分析本身是在压力的影响下对食物的变形和流动的研究,包括评估原材料,中间组件和成品。

From a manufacturer's perspective, food texture analysis could be assessing the functionality of an ingredient within the production process or its effect on the finished product. From a customer's perspective, food texture analysis could be a vital assessment to ensure an anticipated or expected sensory property, quality or functional performance of a food.


Sensory Analysis vs. Texture Analysis


Sensory tests and verbal descriptor terms are highly useful in understanding product texture/rheology.

但是,诸如ta.xt之类的复杂乐器plus纹理分析仪是为流变/纹理食品测量设计的,它变得越来越普遍,易于使用,并且能够更好地提供可靠,有意义的数据。“有意义的”是指这些物理仪器的数据与人类的感官判断非常相关。

消费者对纹理特征和口感的评估可能很耗时,并且数据难以分析,因此通过仪器方法替换这种评估方法非常有用。


雷竞技苹果app下载稳定的Micro Systems博客文章,您也可能会发现有趣:

Sensory Analysis vs. Texture Analysis
Sensory Analysis and Definitions of Food Texture
The Importance of Texture in Food
The Desire to Chew
The Vocabulary of Food Texture
世界各地的食物质地
食物Texture – Likes and Dislikes

现实生活中的纹理分析雷竞技有效投注额应用

Texture analysis articles
Request an articleabout Texture Analysis
Request an articleabout Emerging Technologies in Texture Analysis
Published papersthat refer to the use of a Stable Micro Systems Texture Analyser:
Read our Blog postsabout Texture Analysis


纹理分析探针

探针& Fixtures

The Texture Analyser uses a range of different probes and fixtures according to your specific application.

Exponent Software

Software

Whether you require a simple test and data analysis solution or a fully featured software package – we give you the choice.

Peltier cabinet

温度控制

If your product is temperature sensitive, we have a range of temperature monitoring and control options.


Acoustic Envelope Detector setup

Measure More than Force

By attaching peripheral devices you can collect additional measurement parameters during your standard texture analysis test.

Automated Linear Indexing System

自动化

Find out how to increase your sample throughput, walk away time and testing efficiency with several automation options.

Loadcell in case

Accessories

我们的纹理分析仪配件范围涵盖了对仪器使用,维护和保护的要求。




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