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Chitosan Oligosaccharide vs Chitosan in Plant Growth

Chitosan Oligosaccharide vs Chitosan in Plant Growth

Chitosan Oligosaccharide and Chitosa are two contenders that often come head-to-head, stirring up discussions among health enthusiasts, agriculturists, and scientists alike. They are also naturally derived compounds that can promote plant growth. But what sets them apart, and how do they compare? Let’s dive into the world of these fascinating biopolymers to uncover their differences, benefits, and uses.

What is Chitosan?

What is Chitosan?

Chitosan is a versatile biopolymer obtained from the shells of crustaceans such as shrimps, crabs, and lobsters. It’s produced by treating the chitin shells with an alkaline substance, which removes the acetyl groups. This process transforms chitin into chitosan, making it soluble in acidic solutions. Chitosan’s magic lies in its ability to bind with fats and oils, making it a popular ingredient in fertilizer to promote plant growth.

Benefits of Chitosan Fertilizer

Benefits of Chitosan Fertilizer

Chitosan Fertilizer emerges as a champion for modern farming practices. Its exceptional benefits lie in its ability to control pests and bolster crop resilience against diseases, acting as a protective shield for plants. Moreover, Chitosan Fertilizer plays a crucial role in decomposing trace metal elements in the soil, thereby reducing metal toxicity and improving soil health. This, in turn, enhances plant immunity and overall vitality, setting the stage for robust plant growth.

Farmers also report significant improvements in both yield and quality of produce, attributing these gains to the health-boosting properties of Chitosan Fertilizer. Another feather in its cap is its compatibility with a wide range of pesticides and fertilizers, making it an adaptable and indispensable ally in agricultural endeavors. This synergy allows for integrated pest and nutrient management strategies, simplifying farm operations while maximizing the health and productivity of crops. With these compelling advantages, Chitosan Fertilizer is undeniably a game-changer in the pursuit of sustainable and efficient agriculture.

Need of Chitosan Fertilizer? Find more here: Dora Chitosan Fertilizer

Chitosan Oligosaccharide

Chitosan Oligosaccharide

Chitosan Oligosaccharide, on the other hand, is a derivative of chitosan. This compound is produced by further breaking down chitosan into smaller molecular segments through enzymatic hydrolysis. The result is a water-soluble, low molecular weight substance that retains many of the beneficial properties of chitosan but with enhanced bioavailability and functionality. Chitosan Oligosaccharide finds its prowess in agriculture as a plant growth enhancer, in cosmetics for its moisturizing properties, and in healthcare for its prebiotic effects.

Chitosan Oligosaccharide in Plants

Chitosan Oligosaccharide in Plants

Chitosan Oligosaccharide (COS), a derivative of chitosan, brings a myriad of benefits to plant health and development, proven by the positive impact seen in various studies and agricultural practices. One of the standout advantages is its ability to increase seed germination. By enhancing seed vigor, germination rates, and stimulating the immune and growth systems, COS-treated seeds show remarkable improvements in disease resistance and growth speeds. For instance, ryegrass seeds treated with COS have seen a 33.5% increase in germination index and a 59.5% boost in vitality index.

Beyond germination, COS significantly bolsters a plant’s immunity to stress and diseases. It regulates endogenous hormones, improving water retention and resistance to adverse conditions like cold and drought, while aiding recovery in damaged plants. COS also strengthens plant cell walls, offering an effective defense against viruses, fungi, and bacteria, thereby reducing the likelihood of viral infections and their spread.

Need of Chitosan Oligosaccharide? Find more here: Chitosan Oligosaccharide for Plants

Chitosan Oligosaccharide vs Chitosan: What’s the Difference?

Chitosan Oligosaccharide vs Chitosan: What's the Difference?

In the agricultural sector, both Chitosan and Chitosan Oligosaccharide (COS) have marked their territory as invaluable allies, yet they cater to plant health and development in distinctly different ways. Understanding their differences is key to leveraging their full potential in enhancing crop productivity and resilience.

Molecular Structure and Solubility

At the heart of their differences lies their molecular structure and solubility. Chitosan, being a polysaccharide derived from chitin, has a larger molecular weight and is only soluble in acidic solutions. This characteristic can limit its direct application in certain agricultural practices. On the other hand, COS, with its lower molecular weight due to the enzymatic hydrolysis process it undergoes, is highly soluble in water. This fundamental difference in solubility means that COS can be more readily absorbed by plants, making it a more efficient agent in promoting plant health and growth.

Bioactivity and Absorption

The enhanced bioactivity and absorption rates of COS directly influence its efficacy in plant applications. Due to its smaller molecular size, COS can penetrate plant tissues more easily than Chitosan, facilitating quicker and more effective responses within the plant’s systems. This includes improved seed germination, enhanced stress and disease resistance, and better overall plant vitality.

Application in Plant Health

While Chitosan is celebrated for its ability to improve soil health, enhance plant growth, and act as a natural biocide against pathogens, its application is often more generalized. COS, with its higher bioactivity, targets plant systems more specifically. It actively works to enhance seed germination rates, boost plant immunity against diseases and environmental stresses, and improve the micro-environment of the soil by promoting beneficial microbial activity.

Compatibility and Use Efficiency

Another notable difference is in their compatibility and use efficiency with other agricultural inputs. Chitosan’s larger molecular structure might not always mix well with certain pesticides or fertilizers, potentially requiring separate application processes. COS’s superior solubility and lower molecular weight make it highly compatible with a wide range of agricultural inputs, allowing for more integrated and efficient application strategies.


While both Chitosan and Chitosan Oligosaccharide offer significant benefits to plant health and agricultural productivity, their differences in molecular structure, solubility, bioactivity, and application efficiency make them suitable for different purposes. Chitosan is an excellent choice for improving soil health and providing broad-spectrum plant support. In contrast, COS stands out for its ability to directly enhance plant growth, resilience, and productivity through more targeted and efficient mechanisms.

Dora has been manufacturing both Chitosan Oligosaccharide and Chitosan fertilizer for plant growth, and if you are interested in these elicitors, contact us here at and we can even customize your plant growth formula based on your plants status!

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