Preguntas frecuentes sobre nuevos alimentos

¿Qué impulsa el desarrollo de la producción de alimentos nuevos?

Several interconnected socio-political, environmental and market factors. These include the need for:

• sustainable food systems, a less resource-intensive supply chain and alternatives to animal-based ingredients in order to reduce environmental impact
• food safety – as there is no animal contact in new fermentation processes, risks of zoonosis and contamination from animals are heavily reduced
• enough food to support a growing population
• alternatives to animal-based ingredients in order to meet consumer demand.

¿Qué son los sistemas alimentarios sostenibles?

According to the Food and Agriculture Organization of the United Nations (FAO), a sustainable food system is one that is:

• economically sustainable: the enterprise is profitable for all stakeholders across every part of the value chain
• socially sustainable: the food produced offers benefits for society broadly, such as food security that ensures healthy and nutritious diets for everyone
• environmentally sustainable: production and consumption of the food has a positive or neutral impact on the planet and our natural resources⁴.

¿Qué son las "proteínas alternativas"?

Being macronutrients we need to survive, proteins are an essential part of the human diet. In addition to nutritional benefits, there are functional proteins that support solubility, emulsification, gelation and foaming, water binding and heat stability. Functional proteins – more specifically, some enzymes – can also catalyse specific chemical reactions to give food items certain desired flavours or textural properties.

Today, our food systems are heavily reliant on animal-based protein sources like meat, fish, eggs and dairy. The term “alternative proteins” generally means alternatives to these sources in particular. There is a great deal of development in the new food space today devoted to finding additional sources to proteins that fulfil key nutritional and functional roles in food and beverage production.

There are many different potential sources for alternative proteins, but innovation in this area can generally be organized into four main categories:

• Plant-based
• Fermentation-based
• Cultivated meat
• Insects

¿Qué significa "alto contenido en proteínas"?

Protein makes up for approximately 20% of an average human body, and we get protein from our diet. When it comes to protein content in food, the EU and the UK regulations allow two official claims:

• “High protein” indicates that the product contains at least 20% protein
• “A source of protein” indicates that the protein content is between 12 and 20%

¿Qué papel desempeñan los ingredientes de origen vegetal en la producción de nuevos alimentos?

Once thought of just in terms of “vegetarian” or “vegan”, today the broader label of “plant-based” is typically used for food and beverage products where the key ingredients come from plants. Such ingredients can include vegetable and fruit ingredients as well as grains, seeds, legumes and more.

Plant-based ingredients have been important to developing new food products over the last several years. Today there is an ever-growing category of alternative foods and beverages that rely primarily or exclusively on plant-based ingredients produced through innovative new processes.

¿Qué papel desempeña la fermentación en la producción de alimentos nuevos?

Microbial fermentation processes have been used to produce, enhance and preserve foods and beverages for thousands of years. It is the key behind everything from bread and beer, to cheese and yoghurt, to pickles and kimchi – and much more.

When we talk about fermentation in the context of new foods, however, we’re talking about a category of processes that have only begun being used in food production much more recently. In particular, there are two main types of processes that have become the focus of development in the new food space:

• Biomass fermentation, in which vast quantities of unicellular microorganisms are “grown” and “harvested” to either be used as ingredients in food production, or formulated for end-use.
• Precision fermentation, in which microorganisms are utilised as a means of producing proteins, fats, vitamins or other compounds that can serve as functional ingredients in food production.

¿Qué es la carne cultivada?

Cultivated meat, also known as cultured meat or cellular lab-grown meat, refers to meat that is grown directly from cells. In this process, cells are used to build muscle tissue and fat in a biological process that is the same as what happens inside of an animal.

Meat cultivation thereby allows for the production of bio-identical “real” meat products, but without the use of live animals and the resource consumption that animal husbandry requires. In theory, the production of cultivated meat could therefore provide an efficient way of producing highly desirable new food products and ingredients in the years to come.

¿Qué es la agricultura celular?

Cellular agriculture is a term that is sometimes used to refer to a category of processes where cell cultures are involved in the production of new food ingredients. This can include both meat cultivation and fermentation processes.

¿Qué diferencia hay entre la fermentación de biomasa y la fermentación de precisión?

In biomass fermentation, the microorganisms that grow and reproduce are themselves ingredients.

In precision fermentation, the microorganisms themselves are not used as ingredients. Instead, they are “programmed” to produce certain proteins, fats, vitamins or other compounds which can be harvested for use as functional ingredients.

¿La fermentación de biomasa puede considerarse un proceso vinculado a "alimentos nuevos"?

Biomass fermentation itself is not new to commercial food processing. In fact, there are examples of biomass fermentation processes used in the production ingredients since the early twentieth century. Even the production of microfungal biomass proteins, now a common application area, dates back at least to the 1970s, when it was first used for animal feed⁵.

At the same time, biomass fermentation processes are currently being used to produce innovative foods and ingredients that can very much be described as “new foods.” Developers in this space are continuously exploring new microorganism strains and new applications that can be used to introduce new products. Today, much of the focus is on creating new types of alternatives to traditional meat and fish products.

¿Qué tipos de aplicaciones alimentarias involucran la fermentación de biomasa?

Today, biomass fermentation is increasingly used in the development of alternative foods and ingredients that can replicate characteristics of conventional, animal-based food products. A key application area is the development of meat and fish substitute products (meat analogues). Protein-rich strains of microfungi have often been used for this application, as they can provide a texture and mouthfeel similar to traditional meat and fish products. Production of meat and fish substitutes using yeast and microalgae is also a growing area of development.

¿Qué son los nuevos alimentos "híbridos"?

Biomass fermentation can also be used in the development of so-called “hybrid” new food products. In these cases, ingredients produced through biomass fermentation are combined with plant-based or cultivated meat ingredients. By using different ingredients that offer different characteristics, the intended result is typically to better reproduce the flavour, textural or nutritional profiles of particular animal-based food products.

¿Cuál es el mercado actual de la fermentación de biomasa?

According to the non-profit Good Food Institute, there were at least 136 active companies “focused primarily on fermentation for alternative proteins” as of 2022. 74 of these companies focus on biomass fermentation, and the majority of those specialise in producing analogues to various meat and seafood products¹.

¿Los ingredientes producidos mediante fermentación de biomasa son veganos?

Yes. As these ingredients are never derived from animals, they are considered vegan.

¿Qué tipo de equipos se utilizan para la fermentación de biomasa comercial?

Most fermentation processes involve a fermenter or bioreactor. In precision and biomass fermentation a bioreactor is needed to provide a controlled environment for the microorganisms and induce the production of the target ingredients. Additional equipment is needed upstream of the fermenter to prepare the microorganism and the feed it needs for fermentation. For example, powder handling, heat treatment and high shear mixing are essential technologies to prepare the media for the fermentation process. A seed train is a sequence of special equipment to produce certain amount of biomass which is introduced to the broth media of the reactor to start the process. There are also equipment needs downstream of the fermenter to further process (concentrate, separate, formulate etc) the biomass for the intended ingredient or product.

There is a huge range of processing equipment and technologies to be considered, and selecting the right solutions will depend on the nature of the microorganism in question and the type of product being produced. This is an area where businesses can draw on extensive knowledge from the food industry broadly. Working with partners that have broad experience of commercial food and beverage production can therefore be a good idea when setting up the solution.

¿La fermentación de precisión puede considerarse un proceso vinculado a "alimentos nuevos"?

Precision fermentation has a history stretching back several decades. It is a well-understood and used process in pharmaceutical manufacturing.

In food production, precision fermentation has traditionally been used for producing enzymes. Examples include enzymes used in juice extraction, as well as the production of non-animal rennet used for making cheese.

However, it is only recently that precision fermentation has been explored as a means of creating alternative proteins, fats and sugars traditionally found in animal-based sources. As this is a new – and still developing – application area, products such as dairy or egg proteins produced in this fashion are generally classified as “new foods.”

¿Qué tipos de aplicaciones alimentarias involucran la fermentación de precisión?

The number of potential applications for this technology is virtually limitless. Many of the application areas for precision fermentation deal with so-called “hybrid” products.

The types of new food ingredients currently being explored with precision fermentation can include:

• Proteins and fats traditionally found in meat and fish
• Proteins and sugars traditionally found in milk
• Proteins traditionally found in eggs
• Honey that is bioidentical to that produced by bees

¿Qué son los nuevos alimentos "híbridos"?

Precision fermentation can also be used in the development of so-called “hybrid” new food products. In these cases, ingredients produced through precision fermentation are combined with, for example, plant-based or cultivated meat ingredients. By using different ingredients that offer different characteristics, the intended result is typically to better reproduce the flavour, textural or nutritional profiles of particular animal-based food products.

¿Cuál es el mercado actual de la fermentación de precisión?

According to the non-profit Good Food Institute, there were at least 136 active companies “focused primarily on fermentation for alternative proteins” as of 2022¹. The majority of these companies focus on biomass fermentation, but the number of precision fermentation-based companies is growing quickly. There were at least 62 active precision fermentation companies as of 2022, and the primary focus is products using non-animal fats or proteins from dairy³. However, regulatory issues – which are present in most geographies – mean that many precision fermentation companies face hurdles in getting products approved for commercial food production.

¿En qué se diferencia la fermentación de precisión del cultivo de carne?

In precision fermentation, specific proteins, fats, vitamins or other compounds with functional properties are reproduced by microorganisms and then harvested to be used as a functional ingredient in further food and beverage processing.

In meat cultivation, the meat is produced by cultivating animal cells directly⁷., but microorganisms are not involved. Here, the cells provide the basic elements needed to build muscle tissue and fat.

¿La fermentación de precisión involucra organismos genéticamente modificados?

Genetic engineering is an inherent part of the precision fermentation process, as it starts with identifying a target gene and encoding this into the DNA of a bacteria or other microorganism. The result of the gene encoding is what is known as a genetically modified microorganism (GMM), which in many geographies is subject to similar regulatory oversight as other genetically modified organisms (GMOs) used in the food and beverage industry. However, the end-goal of most precision fermentation processes is to produce an ingredient that is not, itself, genetically modified.

¿Los ingredientes producidos mediante fermentación de precisión son veganos?

Precision fermentation is capable of producing many different ingredients, including animal-like recombinant proteins and other nutrients from meat, milk and eggs. Here, this happens without the involvement of animals. Hence, precision fermentation products are often labelled “animal-free”.

However, as per the definition from vegan.org⁶., a vegan product must not

• contain any animal products
• use any animal products in the production process
• involve any animal testing

¿Qué tipo de equipos se utilizan para la fermentación de precisión comercial?

Most fermentation processes involve a fermenter or bioreactor. In precision and biomass fermentation a bioreactor is needed to provide a controlled environment for the microorganisms and induce the production of the target ingredients. Additional equipment is needed upstream of the fermenter to prepare the microorganism and the feed it needs for fermentation. There are also equipment needs downstream of the bioreactor to, for example, separate, purify and further process the intended target ingredient.

Many of the technologies that can be considered for commercial ingredient production with precision fermentation were originally developed for other types of food and beverage manufacturing. For businesses in this space preparing to make the leap from lab and pilot-scale production, there may be a lot of questions about how to best select the right equipment. A partner with broad knowledge of food and beverage processing can support with technological solutions that make precision fermentation processes viable at commercial scale.