Pullulan for Fruit Preservation

Pullulan for Fruit Preservation
Pullulan for Fruit Preservation
Molecular formula
Plastic bags and carton vacuum packaging
Sealed and protected from light
Provide OEM services
Food Grade
Pullulan, a natural polysaccharide produced by Aureobasidium pullulans, has gained significant attention for its potential applications in fruit preservation. Pullulan forms edible coatings that act as barriers against moisture loss, microbial growth, and oxidation, thus preserving the quality and freshness of fruits. The incorporation of antimicrobial agents into pullulan coatings enhances their efficacy in inhibiting spoilage microorganisms.

Pullulan for Fruit Preservation: A Sustainable Solution

Fruits are highly perishable commodities prone to rapid deterioration during storage and transportation, leading to significant economic losses and food waste. Traditional methods of fruit preservation, such as cold storage and chemical treatments, often come with drawbacks such as environmental concerns, loss of nutritional value, and potential health risks. In recent years, researchers have been exploring alternative approaches to extend the shelf life of fruits while maintaining their quality and freshness. One such promising solution is the use of pullulan, a natural polysaccharide with remarkable properties that make it an ideal candidate for fruit preservation.

What is Pullulan?

Pullulan is a polysaccharide produced by the fungus Aureobasidium pullulans through fermentation of starch or sucrose. It belongs to the class of microbial polysaccharides and is composed of repeating units of maltotriose connected by α-1,6 glycosidic linkages. Pullulan is widely recognized for its film-forming ability, high water solubility, and excellent film-forming properties, making it suitable for various applications in the food and pharmaceutical industries.

Properties of Pullulan Relevant to Fruit Preservation

◢ Barrier Properties: Pullulan forms thin, transparent films that act as barriers against moisture loss, gas exchange, and external contaminants. These films create a protective layer around the fruits, reducing water loss and maintaining optimal humidity levels to prolong shelf life.

◢ Antimicrobial Activity: Pullulan exhibits inherent antimicrobial properties against a wide range of microorganisms, including bacteria, fungi, and yeasts. By inhibiting microbial growth, pullulan helps prevent spoilage and decay of fruits during storage.

◢ Antioxidant Activity: Pullulan possesses antioxidant properties, scavenging free radicals and inhibiting oxidative reactions that contribute to fruit deterioration. By reducing oxidative stress, pullulan helps preserve the color, flavor, and nutritional quality of fruits.

◢ Biodegradability: Pullulan is a biodegradable polymer, meaning it can be broken down into harmless compounds by microorganisms in the environment. This eco-friendly characteristic makes pullulan an attractive alternative to synthetic packaging materials for fruit preservation.

Applications of Pullulan in Fruit Preservation

◢ Edible Coatings: Pullulan can be formulated into edible coatings that are applied directly onto the surface of fruits. These coatings form a protective barrier that extends the shelf life of fruits by reducing water loss, inhibiting microbial growth, and preventing oxidative damage. Pullulan-based coatings are transparent, tasteless, and odorless, ensuring minimal impact on the sensory properties of fruits.

◢ Incorporation of Antimicrobial Agents: Pullulan-based coatings can be enhanced with antimicrobial agents such as essential oils, plant extracts, or antimicrobial peptides to improve their efficacy against spoilage microorganisms. These antimicrobial additives work synergistically with pullulan to provide extended protection against microbial contamination.

◢ Modified Atmosphere Packaging (MAP): Pullulan films can be used as components of modified atmosphere packaging systems for fruits. By controlling the composition of gases surrounding the fruits, pullulan films help maintain optimal storage conditions, thereby extending shelf life and preserving freshness.


Pullulan emerges as a promising solution for fruit preservation, offering a combination of barrier properties, antimicrobial activity, antioxidant activity, and biodegradability. By forming edible coatings or packaging films, pullulan helps extend the shelf life of fruits while preserving their quality, nutritional value, and sensory attributes. Moreover, pullulan-based solutions contribute to sustainability efforts by reducing food waste and minimizing environmental impact. Further research and development in the application of pullulan for fruit preservation hold great potential for enhancing the efficiency and sustainability of postharvest handling practices in the fruit industry.

About Shandong Mimei Biotechnology Co., Ltd.

Established in 2019, Shandong Mimei Biotechnology Co., Ltd. stands as a premier manufacturer and supplier of pullulan and related bio-polysaccharide products in China. With a commitment to excellence, we leverage our robust technical capabilities and extensive manufacturing experience to deliver top-notch solutions to our clients.

Pullulan for Fruit Preservation:

In the realm of fruit preservation, our pullulan products emerge as a game-changer. Pullulan, a naturally occurring polysaccharide produced by certain bacteria, has gained widespread recognition for its exceptional properties in food applications. At Shandong Mimei Biotechnology Co., Ltd., we harness the power of pullulan to revolutionize fruit preservation methods.

Features and Benefits of Our Pullulan:

Natural Preservation: Pullulan offers a natural and safe alternative for fruit preservation, free from harmful chemicals or additives.

Extended Shelf Life: Our pullulan-based solutions help extend the shelf life of fruits by creating a protective barrier against moisture loss and microbial spoilage.

Maintained Freshness: By inhibiting oxidation and enzymatic browning, pullulan preserves the freshness and visual appeal of fruits, ensuring they reach consumers in optimal condition.

Versatile Applications: From fresh fruits to processed fruit products, our pullulan solutions cater to a diverse range of preservation needs, offering flexibility and reliability.

State-of-the-Art Manufacturing:

Our manufacturing facilities span over 100,000 square meters, equipped with advanced technology to ensure superior quality and efficiency. With an annual output of 3,000 tons of pullulan, 10 billion pullulan hollow capsules, and 80 million pullulan biopolysaccharide films, we meet the demands of clients across various industries.

Quality Assurance:

We prioritize quality at every stage of production, holding certifications including ISO22000, ISO14001, and ISO45001. Furthermore, our products are certified organic, kosher, and halal, affirming our commitment to delivering products of the highest standards.

Contact Us

At Shandong Mimei Biotechnology Co., Ltd., we are dedicated to revolutionizing fruit preservation with our premium pullulan solutions. With a focus on innovation, quality, and sustainability, we empower our clients to enhance the shelf life, freshness, and appeal of their fruit products, thereby driving success in the competitive market.

For inquiries or partnerships, please contact us. Let's embark on a journey towards fresher, healthier fruit preservation solutions together.

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