Advances in Extraction Technologies and Biomedical Functions of Natural Sweeteners

The practical takeaway

If you formulate with sugar, you already know the challenge. Consumers want fewer calories. They also want recognizable ingredients. This review in Frontiers in Nutrition (doi:10.3389/fnut.2022.952147) looks at how natural sweeteners are made and why that matters. It covers extraction, bioconversion, fermentation, and biomedical function. For buyers, the production method is the story.

Background

Natural sugar substitutes aren't one category. Some come from plants. Some come from enzymes. Some come from yeast. The paper groups them by extraction technology and biological production. It also connects those routes to health effects. The goal is simple: find sweeteners that perform like sugar without the metabolic load.

Allulose sits at the center. It is a six-carbon rare ketohexose. It has almost zero calories. Chemically, it is D-fructose with the third carbon epimerized. That small change makes it an ideal natural sugar replacement. The paper says bioconversion is becoming the main strategy for allulose production. That shift matters if you source ingredients at scale.

What the study did

This is a review paper. The authors pulled together current work on natural sweetener extraction and biological function. They did not run a new trial. Instead, they compared production routes and highlighted what works.

Three production routes stand out. First, enzymatic or microbial bioconversion for allulose. Second, membrane filtration for fructo-oligosaccharides (FOS) from yacon. Third, fermentation for erythritol using a newly identified yeast strain.

Key findings

The paper points to specific technologies with commercial potential. For FOS, researchers used ultrafiltration (UF), nanofiltration (NF), and diafiltration. These membrane methods concentrate and purify FOS from yacon. UF combined with NF looks especially promising.

For erythritol, the new yeast Clavispora lusitaniae JARR-1 changes the equation. Fermentation with this strain can produce high-purity natural sugar substitutes. It also improves production efficiency. That is exactly what ingredient buyers want: more output per unit of input.

Here is the evidence in one table:

Sweetener	Production route	What the paper reports
Allulose	Bioconversion	Six-carbon rare ketohexose, almost zero calories, D-fructose C3 epimer. Bioconversion is becoming the main production strategy.
FOS	Ultrafiltration + nanofiltration + diafiltration from yacon	Membrane technologies concentrate and purify FOS. UF combined with NF is highly promising.
Erythritol	Fermentation with Clavispora lusitaniae JARR-1	The new yeast produces high-purity natural sugar substitutes and improves production efficiency.

Note the pattern. Each sweetener needs a different manufacturing toolbox. Allulose depends on biocatalysis. FOS depends on membrane selectivity. Erythritol depends on microbial strain performance. Your supply chain should reflect that.

What it means for manufacturers

Read this as a sourcing signal. Allulose is not a commodity yet. The move toward bioconversion means enzyme quality and microbial strains control cost. If you buy allulose, ask your supplier about conversion yield. The paper says bioconversion is the main route, so supplier expertise matters.

FOS buyers should watch membrane technology. UF plus NF can deliver concentrated, purified FOS from yacon. That process avoids harsh chemical steps. It also fits a clean label story. If your product needs fiber plus mild sweetness, FOS from membrane filtration is worth evaluating.

Erythritol buyers should track fermentation science. A new yeast strain such as Clavispora lusitaniae JARR-1 can shift production economics. Fermentation produces high-purity product. High purity means less downstream cleanup. That lowers your total cost.

The common thread is production efficiency. The paper does not rank sweeteners by taste. It ranks them by feasibility. For formulators, feasibility is the first filter. You can adjust flavor later.

FAQ

Is allulose produced by extraction or bioconversion? Bioconversion. The paper states that biological transformation methods are gradually becoming the main strategy for allulose production.

Does the paper cover FOS from chicory or other sources? The evidence described here focuses on yacon. The researchers used UF, NF, and diafiltration to concentrate and purify FOS from that source.

Can the new yeast strain make other sweeteners? The paper specifically reports erythritol production by Clavispora lusitaniae JARR-1. Don't extend it beyond that.

Closing thoughts

The full review appears in Frontiers in Nutrition under DOI 10.3389/fnut.2022.952147. It gives you a structured view of extraction and biological production. Use it to sharpen your questions for suppliers. Allulose, FOS, and erythritol each have a different path to market. Know which path your ingredient takes.