Short answer

When developing new food products with added functional ingredients like spirulina, prioritize rigorous sensory testing alongside nutritional analysis to ensure market viability.

Field: Innovation & Design
Source: Foods (2025)
Method: Experimental research with sensory evaluation.
Evidence: Moderate effect

Incorporating nutrient-dense spirulina into fruit and vegetable juices significantly enhances protein, fat, and antioxidant content, but potential off-notes can negatively impact consumer acceptance. This innovation & design research insight is drawn from a 2025 study published in Foods. Using Experimental research with sensory evaluation., researchers explored how this design variable affects real-world outcomes. The key design takeaway: When developing new food products with added functional ingredients like spirulina, prioritize rigorous sensory testing alongside nutritional analysis to ensure market viability.

Study

Innovation & DesignNew This WeekModerate effect

Spirulina Enrichment Boosts Juice Nutritional Value but Sensory Hurdles Remain

Incorporating nutrient-dense spirulina into fruit and vegetable juices significantly enhances protein, fat, and antioxidant content, but potential off-notes can negatively impact consumer acceptance.

Foods · 2025

Key Findings

01Spirulina enrichment significantly increased protein, fat, and energy content in sour cherry and tomato juices.
02Antioxidant activity improved substantially in the enriched juices.
03The addition of spirulina caused a noticeable shift in juice colour, from red to blue hues.
04Sensory off-notes associated with spirulina presented a challenge to consumer acceptance.

Application

Design takeaway

When developing new food products with added functional ingredients like spirulina, prioritize rigorous sensory testing alongside nutritional analysis to ensure market viability.

How to apply

When formulating beverages with novel ingredients, conduct extensive sensory panels early in the design process to identify and address potential acceptance issues.

Project actions

01When choosing ingredients for a new product, think about both how healthy they are and how they taste and look.
02Test your product with potential users early and often to get feedback on taste, smell, and appearance.

Method & Evidence

AimTo investigate the nutritional and antioxidant enhancements of spirulina-enriched fruit and vegetable juices, while also assessing the associated sensory challenges and consumer acceptance.

MethodExperimental research with sensory evaluation.

ProcedureSpirulina was added to apple, sour cherry, tomato, and celery juices at different concentrations. Nutritional content (protein, fat, energy) and antioxidant activity were measured. Colour changes were analyzed. Sensory acceptability was evaluated using statistical methods like ANOVA, Tukey’s HSD, PCA, and GPA.

ContextFood product development, functional beverages.

Variables

IV["Presence and concentration of spirulina","Type of fruit/vegetable juice"]

DV["Nutritional content (protein, fat, energy)","Antioxidant activity","Colour parameters","Sensory acceptability scores"]

CV["Initial juice base composition (prior to enrichment)","Processing methods","Storage conditions (implied)"]

Strengths & Limitations

Strengths

+Quantified nutritional and antioxidant improvements.
+Included objective colour analysis and statistical sensory evaluation.

Limitations

The sensory preferences of the test group might not represent the general population. The specific type and quality of spirulina used could influence the results.

Reliability & validity

Reliability could be improved by using a larger, more diverse sensory panel and repeating measurements. Validity is supported by objective nutritional and colorimetric measurements, but sensory validity depends on the representativeness of the panel.

Think critically

How can designers proactively address the sensory challenges of nutrient-dense ingredients to ensure wider consumer adoption of healthier food options?

Design Principles

"Functional benefits must be balanced with desirable sensory attributes for successful product adoption."

This research highlights a common challenge in product development: balancing functional benefits with sensory appeal. Designers and product developers must consider how to integrate novel ingredients that offer health advantages without compromising the user experience, particularly taste and visual aesthetics.

What This Means for Your Design

Adding spirulina to juice makes it healthier but can make it taste and look weird, which people might not like.

How to use in your project

1.Use this research to justify why sensory testing is crucial for new food product development, especially when incorporating novel ingredients.

Add to My Project

Quick Cite

Paragraph starter

Research indicates that while incorporating nutrient-rich ingredients like spirulina can enhance the functional properties of food products, such as increasing protein and antioxidant content in juices, it can also introduce significant sensory challenges. Studies have shown that these sensory drawbacks, including altered taste profiles and visual appeal, can hinder consumer acceptance, underscoring the critical need for thorough sensory evaluation alongside nutritional analysis in the product development process.

Source

Foods

Development of Spirulina-Enriched Fruit and Vegetable Juices: Nutritional Enhancement, Antioxidant Potential, and Sensory Challenges

journal · 2025

View source

Questions About This Research

What does the research say about spirulina enrichment boosts juice nutritional value but sensory hurdles remain?: When developing new food products with added functional ingredients like spirulina, prioritize rigorous sensory testing alongside nutritional analysis to ensure market viability. Evidence: Foods (2025).
Why does "Spirulina Enrichment Boosts Juice Nutritional Value but Sensory Hurdles Remain" matter for design?: This research highlights a common challenge in product development: balancing functional benefits with sensory appeal. Designers and product developers must consider how to integrate novel ingredients that offer health advantages without compromising the user experience, particularly taste and visual aesthetics.
How can designers apply this research?: When developing new food products with added functional ingredients like spirulina, prioritize rigorous sensory testing alongside nutritional analysis to ensure market viability.
What were the main findings?: Spirulina enrichment significantly increased protein, fat, and energy content in sour cherry and tomato juices.. Antioxidant activity improved substantially in the enriched juices.. The addition of spirulina caused a noticeable shift in juice colour, from red to blue hues.. Sensory off-notes associated with spirulina presented a challenge to consumer acceptance.
What research method was used?: Experimental research with sensory evaluation..
How strong is the evidence?: Evidence strength is rated Moderate effect, based on a 2025 journal from Foods.
What should I do differently in my next project?: When formulating beverages with novel ingredients, conduct extensive sensory panels early in the design process to identify and address potential acceptance issues.
What are the limitations?: The study focused on specific juice types and spirulina concentrations; results may vary with other fruits, vegetables, or spirulina strains. Long-term sensory stability was not assessed.