"Phycocyanin as a sustainable preservative"

The proposed solution involves the development of a natural and sustainable preservative based on phycocyanin, given that the food industry accounts for a significant portion of greenhouse gas emissions. By opting for natural preservatives like phycocyanin, it's possible to reduce dependence on artificial preservatives that require energy-intensive industrial processes and result in significant emissions. Consequently, companies can demonstrate a commitment to responsible consumption and production.

Phycocyanin production can be carried out using algae cultivated in water, including in aquariums and tanks. By encouraging sustainable algae production outside marine environments, we can safeguard aquatic ecosystems and the associated biodiversity.

The use of phycocyanin may be a viable alternative to artificial preservatives, as many conventional preservatives used in the food industry are synthetic and may raise safety and environmental concerns. Phycocyanin's use as a natural alternative can offer a more sustainable and healthier option. With increasing demand for natural products, consumers are increasingly concerned about the origin and composition of the products they consume.

Phycocyanin as a preservative can be an attractive strategy for companies to meet the growing demand for natural, clean, and safe products, contributing to the building of a positive brand image. Additionally, the use of phycocyanin presents antioxidant properties, meaning it can help delay food oxidation and thus prolong its shelf life. This is especially important in oxidation-sensitive products such as vegetable oils, processed meats, and baked goods. Its use also becomes important due to its potential antimicrobial properties, as several studies have shown that phycocyanin has antimicrobial activity against various pathogens, including bacteria and fungi. Its incorporation as a preservative can help inhibit microbial growth and prolong food shelf life, thus reducing the risk of contamination and deterioration.

Furthermore, according to Borja (year), recent findings in the scientific community highlight additional benefits of phycocyanin use. In addition to its proven preservative properties, this research indicates that phycocyanin also possesses nutritional benefits, being rich in antioxidants and essential nutrients. By using phycocyanin as a preservative, it's possible to add these additional nutritional benefits to foods and products, as well as reinforce immunity in preventing infections by viruses such as influenza and the coronavirus. According to Borja (2009), this compound has the potential to boost immunity.

The food industry is constantly seeking alternatives to synthetic preservatives due to safety concerns and potential adverse health effects. Based on test results, phycocyanin stands out as a viable option, as it is a naturally occurring compound in nature that is also sustainable and safe. It appears to meet consumer demand while reducing dependence on synthetic preservatives. Evaluations of its effectiveness as a preservative have determined that even at low concentrations, such as 10:1, it was efficient in preserving different types of foods, considering their specific characteristics. Additionally, it ensured a stable formulation for the preservative, maintaining its properties during storage time and controlling and inhibiting contamination by fungi and bacteria.

The solution of using phycocyanin as a natural, sustainable, and eco-friendly preservative has the potential to benefit a wide range of people, from individual consumers to large companies in the food industry. The target population includes:

1. Health-conscious consumers: Many consumers are increasingly aware of the potential adverse effects of synthetic preservatives on health. The solution will meet the needs of this population by providing a natural and safe alternative to preserve food, allowing them to make healthier choices and reducing exposure to harmful chemicals.

2. Individuals with environmental concerns: There is a growing concern about the sustainability and environmental impact of industrial practices. By using phycocyanin as a preservative, we can reduce dependence on synthetic preservatives that contribute to environmental pollution and ecosystem degradation.

3. Small businesses and local producers: Small businesses and local producers often face challenges in finding affordable and effective alternatives to synthetic preservatives. The solution will offer an accessible and environmentally friendly option for preserving food, allowing these producers to meet market demands for more natural and healthy products.

4. Large companies in the food industry: Large companies are also seeking ways to meet consumer demands for more natural and sustainable products. By adopting phycocyanin as a preservative, they can improve their brand image, meet consumer expectations, and contribute to more sustainable practices in the food supply chain.

Overall, the solution of using phycocyanin as a natural and sustainable preservative addresses the needs of various individuals and entities, providing a safe, healthy, and environmentally friendly alternative to traditional synthetic preservatives.

I am well positioned to deliver this solution due to my deep understanding of the needs and concerns of Brazilian and global communities and populations. I have direct experience and familiarity with issues related to food safety, public health, and environmental sustainability. Additionally, I have personal connections to the problem, which allows me to have an intimate and sensitive perspective on their challenges and aspirations.

The research was conducted based on results not only from laboratory testing but also sensory tests, with research conducted across various segments of the community, including different ages and genders. All of this was done to ensure that the implementation of the solution is truly centered on the communities. This is achieved through a process of collaboration and ongoing engagement with members of these communities, listening to their needs, concerns, and ideas. We actively incorporate the feedback and perspectives of the communities at all stages of solution development, from initial research to implementation and evaluation.

PHASE 1 – CULTURE OF Spirulina plantesis

Phycocyanin was extracted from a Spirulina plantesis culture obtained in a 100 ml flask, which was live and fresh. It was then transferred to a transparent glass container filled with filtered and unchlorinated water, and placed in a well-lit environment with ample sunlight, as they require abundant light and warmth to grow into colonies on their own. The aquarium was filled with filtered water without chlorine, and a mineral mixture was added according to package instructions. The water temperature was maintained at an average of 35°C. Initially, the culture was thin, but over time it thickened and expanded. In most cases, it was only necessary to let the colony grow. The pH of the water was tested, which was crucial to determine the harvesting time. The cultures were harvested using a sieve, and then reserved, dried, and sieved later on.

PHASE 2 – EXTRACTION OF PHYCOCYANIN

The extraction of phycocyanin from Spirulina for this prototype was conducted using the solvent extraction and water extraction methods.

Solvent extraction method:

The cyanobacteria were triturated, and the appropriate solvent, in this case, ethanol, was added to them in a ratio of approximately 10:1 (solvent: Spirulina). The mixture was well mixed and left to rest for a few hours, occasionally agitating it and using a centrifuge. Afterward, the extraction period occurred, occasionally filtering the solution to separate the remaining solid residue from the phycocyanin solution.

Note: The liquid part contains phycocyanin, and you can concentrate it by evaporating the solvent at low temperature or using lyophilization techniques.

Water extraction method:

The Spirulina was triturated to form a pasty structure, and distilled water was added to it in test tubes in a ratio of approximately 10:1 and 1:1 (water: Spirulina). The mixture was well mixed and heated in a water bath at a moderate temperature (between 40°C and 60°C) for about an hour. After heating, the solution was filtered to separate the solid part from the liquid part. The liquid part contains phycocyanin, which can be concentrated by evaporating the excess water or using lyophilization techniques.

PHASE 3 - CREATION OF THE CONSERVATIVE PROTOTYPE USING PHYCOCYANIN:

The format of the conservant was determined after several tests, and a liquid product was chosen because it was more economical and therefore more feasible for this prototype. However, it was also possible, experimentally, to create a powder prototype using lyophilization or evaporation techniques, although no tests were conducted with the powder prototype at this stage of the research. Tests on the liquid conservant proportions demonstrated that even in water or ethanol base vehicle at varied proportions of 10:1 and 1:1, there were no significant differences, indicating that even at low proportions, phycocyanin retains its potential for use as a preservative, and the choice of proportion to be used or the base vehicle will depend on the type of food or product you want to preserve, in addition to the desired efficacy.

A test was conducted by mixing the water base vehicle with vegetable glycerin, which also showed good results. Additionally, glycerin may need to be combined with other products for testing in some formulations. In some formulations, it may be necessary to combine with other products for testing, and in the case of vegetable glycerin, it presented excellent results, especially for maintaining product moisture, as glycerin showed excellent responses in helping to retain moisture, which can help extend the product's shelf life and play a role in product stability and texture.

PHASE 4 - MICROBIOLOGICAL TESTS

Sterile Petri dishes and a culture medium such as agar nutrient were used for better results control. The phycocyanin conservant prototype was spread on the petri dish at concentrations of 10:1 and 1:1, and using aseptic techniques, two tests were conducted in this research:

Petri dish with just agar inoculated with the phycocyanin conservant to verify if it could prevent the emergence of bacteria and fungi, compared to a control product. Petri dish where standardized bacteria and fungi suspensions were inoculated to ensure uniform distribution on all plates. Some plates had the phycocyanin solution added, while others did not serve as controls without the additive. After the appropriate incubation period, Petri dishes were examined, and the growth of fungi and bacteria in plates with and without the addition of phycocyanin was compared. The result was efficient in both tests, where phycocyanin was able to inhibit or delay the growth of fungi and bacteria.

PHASE 5 - TARGET PRODUCT TESTS

To test the phycocyanin conservant, a variety of products with different characteristics, such as pH, composition, sensitivity to deterioration, and oxidation, were considered to evaluate the increase in product shelf life, decrease in oxidation, and inhibition of microorganisms. The choice of products included:

Non-carbonated beverages: Fruit juices (using watermelon and orange), as these beverages can be sensitive to microbial growth and oxidation. Dairy products: Milk and yogurt to test the efficacy of the phycocyanin conservant in inhibiting unwanted microorganisms, such as bacteria and fungi. Bakery products: Breads and cookies can be susceptible to fungal and mold growth. The phycocyanin conservant was tested to evaluate its ability to extend the shelf life of these products and inhibit microbial growth. Seafood products: Fresh fish and shrimp, which are highly perishable and susceptible to bacterial deterioration. For the test, samples of the different selected products were prepared, divided into control and experimental groups. The experimental group samples were treated with the phycocyanin-containing conservant, while the control group samples did not receive treatment.

There are several barriers that we expect to overcome with funding for this project:

Technical Barriers: Investment in specialized equipment and state-of-the-art technology may be necessary to enhance the extraction and production processes of phycocyanin, as well as to conduct more advanced quality and food safety tests.

Legal and Regulatory Barriers: To market a phycocyanin-based preservative, it is essential to comply with all regulations and food safety standards established by competent authorities. This may include obtaining certifications and regulatory approvals, which may require significant financial resources.

Financial Barriers: Continuous investment in research and development is crucial to improving the effectiveness and stability of phycocyanin-based preservative, as well as ensuring its long-term commercial viability. Financial resources are needed to conduct market studies, develop marketing strategies, and expand production on a commercial scale.

Market Barriers: Introducing a new preservative into the food market can be challenging due to competition with established traditional preservatives. It is essential to invest in effective marketing strategies to highlight the unique benefits of phycocyanin and educate consumers about its advantages over synthetic preservatives.

Cultural and Awareness Barriers: Many consumers may not be familiar with phycocyanin and its benefits as a natural preservative. Investing in awareness and education campaigns is necessary to increase acceptance and demand for products containing this preservative.

Funding can help overcome these barriers by providing the necessary resources for research and development, regulatory compliance, marketing, and consumer education. Additionally, financial support can enable strategic partnerships with industry experts, academic institutions, and government organizations, facilitating access to specialized knowledge and additional resources to drive the project forward.

This solution is innovative for several reasons:

1. Natural and Sustainable Approach: The use of phycocyanin as a natural and sustainable preservative represents a departure from traditional synthetic preservatives. This innovative approach addresses growing consumer concerns about the safety and environmental impact of artificial additives in food products.

2. Multifunctional Properties: Phycocyanin offers multifunctional benefits beyond its preservative capabilities. It possesses antioxidant properties, which can help extend the shelf life of foods by inhibiting oxidation. Additionally, it has demonstrated antimicrobial activity against various pathogens, further enhancing its effectiveness in preserving food freshness and safety.

3. Versatility and Adaptability: Phycocyanin's stability under different pH and temperature conditions makes it suitable for a wide range of food applications, from dairy products to baked goods and seafood. This versatility allows for its incorporation into diverse food formulations, offering manufacturers flexibility in product development.

4. Positive Environmental Impact: By reducing reliance on synthetic preservatives, the widespread adoption of phycocyanin could contribute to a more sustainable food industry. It could help mitigate environmental pollution associated with the production and disposal of synthetic additives, promoting eco-friendly practices in food manufacturing.

5. Potential Market Disruption: The introduction of a novel, natural preservative like phycocyanin has the potential to disrupt the market landscape dominated by synthetic additives. As consumer preferences shift towards clean label and natural ingredients, products incorporating phycocyanin may gain a competitive edge, leading to broader market acceptance and adoption.

By catalyzing positive impacts in the food preservation space, this solution could inspire further innovations and advancements. It may encourage other researchers and industry players to explore natural alternatives to synthetic additives, driving forward the development of sustainable practices in food manufacturing. Ultimately, widespread adoption of phycocyanin-based preservatives could contribute to a paradigm shift towards healthier, more environmentally friendly food products, benefiting both consumers and the planet.

My solution aims to impact the issue of unsustainable food preservation practices by offering a natural and sustainable alternative to synthetic preservatives. Here is the theory of change behind my solution:

1. Research and Development: Conducting research to extract and produce phycocyanin effectively and sustainably.

2. Testing and Evaluations: Performing tests on the efficacy, safety, and stability of phycocyanin as a preservative in different food products.

3. Education and Awareness: Implementing educational campaigns to inform consumers about the benefits of phycocyanin and promote its acceptance in the market.

Products/Results:

1. Phycocyanin-based Preservative: Developing a natural and sustainable preservative based on phycocyanin, proven to be effective in food preservation and safe for human consumption.

2. Increased Knowledge and Acceptance: Raising awareness and acceptance of phycocyanin as an alternative to synthetic preservatives among consumers, food manufacturers, and regulators.

Immediate Outcomes:

1. Reduced Dependence on Synthetic Preservatives: Food manufacturers start replacing synthetic preservatives with phycocyanin in their product formulations.

2. Improved Food Safety and Security: Consumers have access to healthier and safer food products, free from harmful synthetic preservatives.

Long-term Outcomes:

1. Environmental Sustainability: Reduction of the environmental impact associated with the production and use of synthetic preservatives, promoting more sustainable food manufacturing practices.

2. Improved Public Health: Decreased health risks associated with consuming foods containing synthetic preservatives, leading to a healthier and more resilient population.

This theory of change establishes a logical connection between the activities undertaken to develop and promote phycocyanin as a natural preservative and the desired short- and long-term outcomes, aiming to enhance food safety, promote sustainability, and protect public health.

The impact goals for my solution are:

1. Reduction of synthetic preservatives usage: My solution aims to significantly decrease the use of synthetic preservatives in the food industry by replacing them with a natural and sustainable alternative, such as phycocyanin.

2. Enhancement of food safety: I aim to enhance the safety of available food for consumers by providing a safer and healthier preservative option, free from harmful chemicals present in synthetic preservatives.

3. Promotion of sustainability: My solution seeks to promote more sustainable practices in the food industry by reducing the environmental impact associated with the production and usage of synthetic preservatives.

To measure progress towards these impact goals, I will utilize the following indicators:

• List of companies that have adopted phycocyanin as a preservative: Tracking the number of companies in the food industry that have chosen to use phycocyanin in their products.

• Level of reduction in the consumption of synthetic preservatives: Monitoring the decrease in the usage of synthetic preservatives over time by comparing the quantity of products on the market containing these preservatives to those using phycocyanin.

• Evaluation of food safety: Conducting periodic assessments to ensure that products preserved with phycocyanin meet the food safety standards established by regulatory authorities.

• Analysis of environmental impact: Analyzing the environmental impact of phycocyanin production and usage compared to synthetic preservatives, considering factors such as greenhouse gas emissions, water consumption, and waste generation.

These indicators will help me assess progress towards the impact goals of my solution and identify areas that may require adjustments or improvements to achieve the desired results.

The core technology powering my solution is the extraction and utilization of phycocyanin, a natural pigment found in Spirulina platensis, a type of blue-green algae. Phycocyanin acts as a potent antioxidant and antimicrobial agent, making it an ideal candidate for use as a natural preservative in the food industry.

The technology involves cultivating Spirulina platensis in controlled environments, where optimal conditions of light, temperature, and nutrient availability are maintained. Once the Spirulina culture reaches maturity, phycocyanin is extracted using solvent-based or water-based extraction methods. These methods involve separating phycocyanin from the biomass of Spirulina, resulting in a concentrated extract of the pigment.

Once extracted, phycocyanin can be incorporated into various food products as a natural preservative. It helps extend the shelf life of foods by inhibiting the growth of harmful microorganisms, such as bacteria and fungi, thereby enhancing food safety. Additionally, the antioxidant properties of phycocyanin help prevent oxidative deterioration of food products, further increasing their quality and freshness.

This technology harnesses the power of nature to address key challenges in the food industry, including the need for safer and more sustainable preservatives. By leveraging the natural properties of phycocyanin, my solution aims to provide an innovative and environmentally friendly alternative to synthetic preservatives, benefiting both people and the planet.

The effectiveness of the technology using phycocyanin as a natural preservative has been studied and documented in scientific research and academic literature. There are several studies demonstrating the antioxidant and antimicrobial properties of phycocyanin, and in my research, the results have shown its ability to significantly extend the shelf life of foods.

An example of research validating the effectiveness of phycocyanin as a natural preservative can be found in the article titled "Antimicrobial and antioxidant properties of the methanol extract of the marine microalga Tetraselmis suecica in refrigerated raw salmon," published in the Journal of the Science of Food and Agriculture. In this study, researchers investigated the effects of the extract from Tetraselmis suecica, which contains phycocyanin, on the preservation of refrigerated raw salmon. The results demonstrated that the extract exhibited strong antimicrobial activity against pathogenic bacteria and also exerted antioxidant effects, helping to preserve the quality of salmon during refrigerated storage.

cellina Landim Goncalves Afonso

1 year