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Frozen Foods: Ice Cream, Frozen Meals, Sorbets: Citri-Fi Citrus Fiber Binds Water, Freeze/thaw Stability and Reduces Ice Crystal Formation

Frozen Desserts: Smoothing Out the Texture

Frozen desserts, like ice cream, tend to fall victim of ice crystals during handling and storage due to temperature fluctuations. Stabilizers bind the water, however, they have their own limitations. Citri-Fi® citrus fiber, when used at less that 1%, minimizes the ice crystals to create a smooth texture while cleaning up food labels.

It is one of the many nostalgic memories that many Earth dwellers have had since childhood – eating ice cream. And if you reside in the USA, you most likely recall the infamous Baskin-Robbins 31 Flavors ice cream shop. This frozen dessert joint sold a flavor for every day of the month. But ironically, many lickers defaulted to their favorite flavor or flavors if given the choice. Today, ice cream not only comes in different flavors but also bases too. Originally, milk was the starting base. However, frozen desserts now can be churned using plant-based milks like oat, almond, coconut and cashew.

The Scoop on Ice Cream Challenges

Making ice cream appears effortless as long as one has an ice cream maker. But when produced on a large scale and distributed across miles of land, frozen desserts are subjected to fluctuating temperatures or heat shock. As a result, ice crystals tend to grow reducing the smooth and creamy texture. Many factors play into preventing water migration during handling and storage including the formulation components, fat level, total solids and overrun.

Ice cream producers rely on stabilizers to bind the water during the quick freeze to minimize ice crystals. The water remains bound during temperature changes preventing ice crystals from forming. However, stabilizers like locust bean gum and guar gum have their limitations. For instance, ice cream stabilizers may be optimal for milk-based ice creams, but they may fall short in dairy-free formats. Many plant-based frozen desserts tend to have a short shelf-life. The longer the time in freezer storage increases the risk of a gummy and chewy texture when using foods gums. Moreover, many food gums fall suspect when found on food labels.

Clean, Smooth and Creamy Ice Cream

One natural solution available includes citrus fiber which locks up the water to create the silky texture. Citri-Fi citrus fiber is produced from byproduct of the citrus juicing industry. This natural food ingredient uses a process free from chemical modifications unlike similar ingredients in the marketplace. At the same time, not all citrus fibers are created the same. Others are byproduct of the pectin extraction which typically use solvents and other chemicals to isolate the fiber. Because of this process, some of these byproducts lack the functionality due to the low levels of intact pectin. As a result, some producers add the pectin back in to enhance the functionality. Alternatively, Citri-Fi citrus fiber is wholistic and contains native intact pectin like Mother Nature intended.

At less than 1% usage level, Citri-Fi provides the water holding and emulsification properties needed to prevent ice crystals from forming over time. Citri-Fi citrus fiber improves the texture, stability and nutrition of both animal-based dairy and plant-based dairy desserts. For example, this citrus fiber works in a variety of non-dairy bases such as almond, oat, rice and coconut plant milks.

In addition to the texture improvement, the Citri-Fi citrus fiber line also cleans up frozen dessert food labeling. This is key in both animal and plant-based ice cream markets. Many brands are going back to ice cream basics listing less than five ingredients. And clean label continues to be a hot trend in plant-based foods including non-dairy desserts. Citri-Fi’s labeling options include citrus fiber, dried citrus pulp or citrus flour which resonate well in the clean label markets. Also, the USDA certified organic Citri-Fi 400 series is now available.

For more information about using citrus fiber in frozen desserts, please contact Fiberstar.

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Formulating Plant-based Foods 3 Ways: Citrus Fiber

Environmental, health and animal welfare triggered an explosion of plant-based food products. At the same time, foods such as milks, meats, ice creams, creamers, cheese and yogurts come with their own challenges and solutions. Besides stability and texture, the market demands cleaner labels. As a result, ingredients such as Citri-Fi® citrus fiber emerged to provide the market a highly functional clean label option. This upcycled citrus fiber provides water holding and emulsification when formulating plant-based foods. As a result, these functionalities provide stability and more natural mouthfeel and texture with cleaner labels.

Free-from, fake, faux, replacements, substitutions and alternatives are just a few descriptors thrown around when referring to non-meat and non-dairy food products. The hot plant-based food trend continues to spur this lexicon exercise. Today, consumers choose a plant-based diet on their set of values and beliefs which vary from person to person. For instance, some are concerned with the environmental impact, the carbon foot print and sustainability when purchasing foods. Others believe that the plant-based diet will curb them from onset diseases like diabetes, cardiovascular disease, obesity and hypertension. And some do not believe in slaughtering animals when there are other protein options available today. Regardless the reason, the industry is in full throttle formulating plant-based foods.

Plant-based Foods: Types and Formats

Decades ago, companies sold ground up vegetables and legumes in the form of vegetarian patties. Today, the market offers a variety of plant-based formats such as milks, meats, creamers, meals, ice cream, yogurts, butter, RTD beverages, bars, dressings and eggs. According to the Plant-based Foods Association, the largest market share includes milk ($2.5B) and meats ($1.4B). (SPINS, 2021) And the fastest growing categories consists of eggs (42%), creamers (33%) and RTD beverages (22%). (SPINS, 2021) Yet, all these plant-based categories come with challenges and solutions when formulating plant-based foods.

Formulator tool boxes evolved over the years to include several ingredients including starches, food gums and plant-based proteins. Yet, today, product developers are seeking more natural and clean label ingredients that provide multiple functionalities. Citrus fiber is one ingredient that meets those parameters. However, not all citrus fibers are the same. These fibers vary depending on their process and composition. For example, Citri-Fi is an upcycled citrus fiber that is produced from a process free from chemical modifications. The composition consists of insoluble fiber, soluble fiber (mostly pectin) and some protein. Because of this, Citri-Fi provides a high degree of functionality – water holding and emulsification – at low usage levels (<1%).

Below lists how Citri-Fi citrus fiber creates stability and natural texture when formulating plant-based foods:

Plant-based Milks

Plant-based milks typically use a variety of bases including oats, soy, almond and coconut. Commercial products tend to use stabilizers to help suspend fortifying ingredients and to create a fuller mouthfeel. However, some of these stabilizers fall suspect in terms of clean label.

Citri-Fi citrus fiber provides not only a full body mouthfeel but also stability when used at less than 1% with homogenization. Because of this, other stabilizers are not needed. As a result, labeling stays clean since Citri-Fi’s labeling options include citrus fiber, dried citrus pulp or citrus flour.

Meat Substitutes

Formulating meat substitutes are trickier. First, meat alternatives come in a variety of formats such as patties, nuggets, sausages and deli cuts. Each format requires different processes and textures. Secondly, the market demands cleaner labels. As a result, product developers steer away from ingredients like methylcellulose which originally was the poster child ingredient when creating meat-like plant-based meats.

Today, the industry offers several new solutions including Citri-Fi citrus fiber. For instance, Citri-Fi 100 series, at <1% usage, provides the emulsification which produces the juiciness and succulence. And the Citri-Fi TX, at 2-4% usage, creates the meat-like texture. When used together, they provide binding and firmer texture. At the same time, when they are used in conjunction with plant proteins like potato or canola, the synergies allow formulators to create methylcellulose-free meat substitutes.

Dairy-free Ice Cream

Again, dairy-free ice cream uses a variety of bases like plant milks. To prevent ice crystallization, these non-dairy ice creams require stabilizers. Without them, the ice crystals compromise the texture creating a sandy and crunchy mouthfeel. On the other hand, some stabilizers lack the water binding during freeze/thaw conditions. As a result, the texture takes on a gummy mouthfeel.

Citri-Fi citrus fiber may not be top-of-mind in frozen dairy-free ice creams. However, this natural ingredient binds water and oil/fats tightly, at <1% usage, even during freeze/thaw conditions. The lack of ice crystallization creates ice creams with a creamy and smooth mouthfeel. And this natural citrus fiber cleans up labels which resonates well in the natural markets.

In addition to the above, Citri-Fi’s high functionality also plays a role when formulating plant-based foods such as creamers, dairy desserts, cheeses, yogurts, bars, dressings and eggs. Citri-Fi is non-allergenic, gluten-free and Non-GMO Project certified. This natural citrus fiber also has no E-number. To learn more about Citri-Fi’s functionalities within plant-based products, please contact us.

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Starch Replacement & Food Gum Extender using Citrus Fiber

The pandemic caused supply chains to choke. As a result, the availability of food ingredients such as starches and food gums tightened up. Citri-Fi® citrus fiber’s high water holding and emulsification properties at low usage levels (<1%) makes this ideal when extending or looking for gum and/or starch replacements in a variety food products.

Your local restaurant bellied up. Your favorite sneaker size is backordered for months. However, the world did not end. You can still purchase toilet paper. The pandemic’s aftermath affected supply chains globally which touched almost every commerce sector including the food industry. Lock down and affected employees caused operations to cease or slow down. Because of this, food production trickled, and seaports became congested which led to a trade imbalance. As a result, food ingredient availability, especially ones importing into the U.S. like certain starches and gums, quickly tightened. In the end, food manufacturers scrambled to find alternatives including starch replacements.

Starches and food gums are the work horses when it comes to creating stable and high-quality processed foods. Without these, foods subjected to harsh processing conditions, handling and shelf stability are typically negatively compromised. For instance, without starches and/or gums, water separation or syneresis occurs in yogurts. Dressings and sauces separate. And frozen desserts like ice cream form ice crystals during storage which leaves you with a sandy mouthfeel.

New Functional Stabilizer for the Formulating Tool Kit

Although starches and gums are top-of-mind for most food manufacturers, there are other solutions available in the market such as citrus fibers. One example includes Citri-Fi citrus fiber. This natural, upcycled functional fiber is created from byproduct of the citrus juicing industry. The process is free from chemical modifications. Many confuse citrus fiber with fortifying fibers. Citri-Fi provides dual functionality – high water holding and emulsification – at very low usage levels (<1%) unlike fortifying fibers. In addition, Citri-Fi’s high pectin content and its ability to increase viscosity with high shear also differentiates itself from other citrus fibers in the marketplace. Because of this, Citri-Fi can be used to extend or replace certain starches and gums like locust bean gum/carob bean gum in a variety of food applications.

For instance, in dairy products like yogurts, cottage cheese and cream cheese spreads, Citri-Fi, when used between 0.2% and 1.0%, minimizes syneresis and improves texture. In ice creams, this natural citrus fiber reduces ice crystal formation while creating a smooth and creamy mouthfeel. Also, starch replacement or extension is an option with this highly functional citrus fiber.

Citrus Fiber Solution and Perks

And since Citri-Fi’s labeling options include citrus fiber, dried citrus pulp or citrus flour, manufacturers inadvertently clean up their label declarations which is a bonus. Citri-Fi is non-allergenic, gluten-free and non-GMO Project certified. And since this natural ingredient has no e-number, it resonates well in the European regions.

For more information in how to extend or replace starches and/or food gums, please contact us or request a sample.

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Vegan Ice Cream: The Smooth Freeze

The plant-based foods category is exploding with product launches. Some of these include plant-based or vegan ice creams and frozen novelties. However, creating these products come with challenges including ice crystal formation which negatively impacts texture and mouthfeel. One natural ingredient, Citri-Fi® citrus fiber binds the water to prevent migration. As a result, ice creams whether they are vegan, plant-based or dairy-free remain creamy and smooth during freeze/thaw cycles.

Plant-based foods continues to be a hot category as a result of the increase in new product launches. This is due to the advancements in procuring a variety of raw materials and creating new processing technologies. In addition, the escalating demand for plant-based products globally drives this growing trend as well. According to statistics cited on the Plant-based Food Association (PBFA) web page, plant-based foods grew by 27% in 2020 to reach a whopping $7B in the U.S.  

The plant-based dairy segment leads this category reaching $2.5B in 2020 with an average growth of around 20% compared to the previous year according to the PBFA. And this segment includes products like ice cream and frozen novelties which also grew by 20% and generated about $435M in sales. For many manufacturers, this is the tip of the iceberg. For instance, this segment will grow exponentially as the demand for foods free from animals and their byproducts continues to boom. 

Vegan Ice Cream Challenges

However, creating plant-based frozen desserts has its own set of challenges. For example, these products come in a variety of bases including almond milk, coconut milk, cashew milk, and oat milk to name a few. Many of these bases contain low protein and fat which typically helps bind water molecules during the freezing process. Because of this, ice crystals form which create a grainy or sandy mouthfeel in the finished product.   

Some solutions include adding proteins, food gums and other hydrocolloids to bind the water during the freezing process. At the same time, many of these ingredients lack freeze/thaw stablility during handling and storage. As a result, water eventually migrates out of the food matrix, causing not only ice crystal formation, but also a gummy texture depending on the stabilizing agent used.  

Natural, Creamy and Smooth Texture

One natural ingredient that remains amiss to formulators is citrus fiber. Yet not all citrus fibers are created the same. Citri-Fi, a highly functional citrus fiber created from byproduct of the citrus juicing process continues to be an ideal fit for this food application. The physical process creates the high surface area and emulsification properties that frozen desserts need. This high surface area in combination with the high pectin binds water and minimizes ice crystal formation during the freeze/thaw process. As a result, the frozen dessert provides a smooth and creamy mouthfeel without the gumminess over time.   

Citri-Fi is typically used between 0.25% to 1.50%. There are several incorporation methods available. Typically, Citri-Fi is mixed with the dry ingredients first before being added to the aqueous phase. However, adding Citri-Fi to glucose syrups first also gives formulators another option. And if Citri-Fi needs to be added to water first, it is recommended to add with strong agitation to prevent fisheyes from forming.   

Another key trend includes upcycled or sustainable food ingredients. Citri-Fi citrus fiber checks off those boxes when it comes to a sustainable story from farm to fork. This natural citrus fiber is non-GMO Project Certified, gluten-free and allergen-free. Citri-Fi's labeling options include citrus fiber, dried citrus pulp or citrus flour which resonate well in the clean label markets. As a result, this natural citrus fiber benefits a variety of products such as plant-based, vegan or dairy-free ice creams and frozen novelties.   

Looking into the Crystal Ball

As for future trends, new innovations will emerge within the plant-based ice cream arena. For instance, fermentation and other biological processes now create new proteins without involving an animal. Some vegan ice creams will be produced with new and novel plant-based milk bases. On the other hand, other products will focus on simple formulations to maintain a clean image. Regardless, Citri-Fi is an ideal solution to minimize ice crystal formation in any of these innovative technologies coming down the pipeline.  

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