Schisandra can enter a beverage as a sweetened fruit preparation or as an extract specified for lignans. These are different starting materials, not simply weaker and stronger versions of the same ingredient. Euromed’s 2025 catalogue lists schisandra fruit with “>9% schisandrins”; the retailer Gochujar describes Cho Loc Won omija liquid as berries steeped with sugar for use in tea and sparkling drinks.[3][4]
The distinction becomes important when a formula needs both fruit character and a defined constituent profile. Research on Schisandra chinensis shows that the fruit part, extraction medium and subsequent acid removal can all affect the measured lignans.[1][2] The most useful specification therefore describes the material that reaches the drink—not just the plant from which it began.
Two ingredient formats, two different jobs
| Commercial example | What the published description emphasizes |
|---|---|
| Commercial exampleEuromed schisandra fruit | What the published description emphasizesSchisandra chinensis fruit, specified as “>9% schisandrins” in the manufacturer’s product list.[3] |
| Commercial exampleCho Loc Won omija liquid, listed by Gochujar | What the published description emphasizesFresh berries stirred with sugar and left to release their liquid; the retailer suggests 20 g syrup with 200 mL carbonated water or Sprite for an iced drink.[4] |
The syrup example is useful because it describes an actual beverage format: fruit preparation and sweetening arrive together, then dilution creates the drink. The catalogue extract instead foregrounds a constituent specification. Its “schisandrins” entry does not identify the individual analytes or demonstrate cold-water dispersion.[3] The retailer’s dilution is a serving suggestion for that syrup, not an industrial dosage or a measured lignan delivery.[4]
For formulation, these examples suggest two separate roles. A fruit preparation can provide the beverage base; a composition-specified extract can be evaluated for a marker target. If both are used, their contributions need to be established in the combined formula. Neither product document demonstrates that the two materials are interchangeable.
Fruit parts determine the starting composition
A 2021 study found 47.42 ± 2.81 mg/g dry weight for the sum of seven measured lignans in seeds, compared with 3.20 ± 0.44 mg/g dry weight in pulp.[2] These were laboratory measurements of freeze-dried plant samples extracted with methanol under sonication and analyzed by HPLC-DAD, not specifications for commercial juice or syrup.[2]
This distribution explains why removing seeds is more than a texture decision. A seed-free fruit preparation and a seed-containing extraction stream start with different proportions of plant tissues. The study’s whole-fruit lignan figure was calculated from pericarp and seed measurements rather than obtained by assaying a finished beverage.[2] It cannot be assigned to a drink simply because its label says “whole fruit.”
The seven-analyte panel comprised schisandrol A, schisandrol B, tigloylgomisin H, angeloylgomisin H, schisandrin A, schisandrin B and schisandrin C.[2] Keeping that panel explicit matters: a total is only comparable when its component measurements and mass basis are comparable.
Sugar-steeped omija develops over time
The same study followed a preparation of 10 kg raw whole fruit mixed with white sugar at 1:1 by weight, held in a porcelain container outdoors. The researchers collected filtered beverage samples after 3, 7, 10 and 12 months.[2]
Seven measured lignans in the sugar-steeped preparation
— original Table 3, mean ± SD, μg/g fresh weight of the beverage sample.[2]
| Holding time | Seven-lignan total, μg/g FW | Statistical group |
|---|---|---|
| Holding time3 months | Seven-lignan total, μg/g FW65.30 ± 7.55 | Statistical groupb |
| Holding time7 months | Seven-lignan total, μg/g FW147.53 ± 21.42 | Statistical groupa |
| Holding time10 months | Seven-lignan total, μg/g FW154.97 ± 20.78 | Statistical groupa |
| Holding time12 months | Seven-lignan total, μg/g FW170.14 ± 37.23 | Statistical groupa |
The source describes three independent experiments. Different letters in this column denote a significant difference at p < 0.05; the seven-, ten- and twelve-month totals share the same letter.[2] The later means rise numerically, but the table does not establish a significant improvement at every successive interval or a universal twelve-month optimum.
The paper calls the process “fermentation,” while also discussing high-sugar osmotic conditions as inhibiting microbial growth.[2] Its measurements establish a time-dependent composition in this particular fruit–sugar preparation, not a selected-microorganism mechanism or probiotic effect. The liquid-sample values also have a different mass basis from the dry seed and pulp results above.
For a low-sugar ready-to-drink concept, the important question is how a changed extraction environment affects the intended composition. Replacing sugar, shortening the holding period and diluting into a finished drink are substantive changes to the studied preparation. The research and the retail syrup describe a useful product route, but neither supplies a validated shortcut for a rapid, reduced-sugar process.
Extraction and deacidification change different stages
Extraction transfers constituents from fruit into a liquid stream. Deacidification then modifies an extract that has already been obtained. In a 2020 laboratory study, researchers used dried S. chinensis fruit and compared two extraction branches: one first treated with hexane, termed defatted, and one without that treatment. Both were extracted twice with 60% ethanol. Each extract was split into an untreated portion and a portion receiving calcium-carbonate treatment, precipitate removal and a further ethanol precipitation step.[1]
That produced samples A and B in the defatted branch, and C and D in the non-defatted branch. A → B and C → D are the respective deacidification comparisons; A → C is not an acid-removal comparison.[1]
Composition before and after deacidification
— original Tables 1–2, reported mean ± SD. Organic acid was measured by potentiometric titration as citric-acid equivalence; lignans were the study’s four-analyte HPLC sum.[1]
| Laboratory sample | Treatment | Organic acid in extract, % | Four-lignan total in extract, % |
|---|---|---|---|
| Laboratory sampleA | TreatmentDefatted; no deacidification | Organic acid in extract, %33.72 ± 2.07 | Four-lignan total in extract, %0.61 ± 0.04 |
| Laboratory sampleB | TreatmentDefatted; deacidified | Organic acid in extract, %6.23 ± 0.50 | Four-lignan total in extract, %0.24 ± 0.03 |
| Laboratory sampleC | TreatmentNon-defatted; no deacidification | Organic acid in extract, %36.47 ± 0.65 | Four-lignan total in extract, %2.70 ± 0.13 |
| Laboratory sampleD | TreatmentNon-defatted; deacidified | Organic acid in extract, %4.47 ± 0.29 | Four-lignan total in extract, %1.75 ± 0.22 |
The paper reports experiments in triplicate. It separately reports acid-removal rates of 86.29% for A → B and 88.00% for C → D, alongside lignan-loss rates of 70.60% and 38.32%, respectively.[1] Those are the authors’ process-rate results, not calculations from the concentration differences in this table. Concentration alone does not establish process recovery; a mass balance also requires the quantity of each resulting extract.
Both routes reduced acidity and changed the lignan fraction. The authors also reported that schisandrin’s share of the measured total rose after deacidification while the shares of the other three analytes fell.[1] A larger share within a smaller total does not establish a greater absolute recovered quantity.
The formulation implication is concrete: lower acidity and retained marker composition are simultaneous targets. A lower-acid material may fit a flavour brief differently, but its post-process composition is a new specification. The laboratory treatment is not equivalent to adding a buffer to a finished drink. Moreover, the analytical samples were redissolved in 60% ethanol, which is not a test of cold-water solubility.[1]
“Total lignans” needs a named analytical panel
The 2020 study defines its total as schisandrin, schisantherin A, deoxyschizandrin and γ-schizandrin.[1] The public USP definition of Northern Schisandra Fruit Dry Extract lists schisandrin, schisandrol B, schisandrin A (deoxyschisandrin) and schisandrin B (γ-schisandrin).[5]
The important difference is schisantherin A versus schisandrol B. Both definitions contain four compounds, but they are not the same sum.[1][5] The names and parenthetical synonyms above follow the original sources. Together with the seven-analyte panel in the omija study and the catalogue’s undefined plural “schisandrins,” they illustrate why percentages alone cannot form a reliable potency ranking.[2][3]
The USP preview also specifies 90.0–110.0% of the labelled amount, on the dried basis, for schisandrin and for its defined total lignans.[5] This is a label-content requirement, not 90–110% lignan purity. The accessible page is a definition preview with a 2019 bibliographic citation, not the complete monograph or evidence that a commercial grade complies with it.[5]
For a composition-led beverage, a useful comparison therefore couples the percentage with the exact analyte list, the analytical method and the dried or as-supplied basis. That connects the supplier’s specification to the amount actually introduced into the formula without assuming that every use of “total” means the same thing.
Bringing the material into a beverage
For an omija-style drink, the fruit preparation provides the starting point for sweetness, acidity and dilution. For a lignan-specified drink, the constituent profile is an additional design target. For a lower-acid version, the target applies to the material after acid removal, rather than to its untreated precursor.
A useful bench comparison would keep the intended beverage base and processing conditions consistent while evaluating the original fruit preparation, the candidate extract and any proposed combination. Record actual inclusion mass, pH and titratable acidity, then assess sensory balance, visible dispersion or sediment and the agreed marker profile. This is a proposed development comparison, not a finished formula tested in either paper. Stability and the appropriate heat-treatment process need to be established for the resulting drink.
The strongest finding is not that the highest-assay extract makes the best beverage. It is that fruit fraction, sugar steeping, solvent extraction and deacidification produce materially different starting points. Matching the format to the drink—and measuring the composition that survives processing—is more informative than choosing the largest percentage in a catalogue.
Evidence scope: this article combines two laboratory studies, one manufacturer catalogue, one retailer listing and a public USP definition preview. It reports composition and material-selection implications, not human efficacy, a safe serving size, finished-drink shelf life or verified supplier stock. The studies’ analytical and animal findings do not establish human beverage safety or health benefits.
Sources
- [1] 2020 Schisandra deacidification experiment (full XML)
- [2] 2021 plant-part and omija lignan study (full XML)
- [3] Euromed product list V3.1 2025
- [4] Gochujar: Cho Loc Won omija liquid listing
- [5] USP Northern Schisandra Fruit Dry Extract — public definition preview (2019 citation)
For related development context, explore beverage applications and botanical ingredients.