Chicken Feather Waste Hydrolysate as a Superior Biofertilizer in Agroindustry

Bhari, Ranjeeta; Kaur, Manpreet; Singh, Ram Sarup

doi:10.1007/s00284-021-02491-z

Cited by 56 publications

(28 citation statements)

References 176 publications

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“…The constituents of nanobiofertilizer include nanoparticles and biofertilizers. The use of nanoparticles is not yet common, and they are still on a trial basis [ 155 , 156 ]. To date, less research has been done on the development and application of nanobiofertilizer.…”

Section: Constraints and Future Perspectives Of Nanobiofertilizermentioning

confidence: 99%

Improvement of Plant Responses by Nanobiofertilizer: A Step towards Sustainable Agriculture

et al. 2022

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Drastic changes in the climate and ecosystem due to natural or anthropogenic activities have severely affected crop production globally. This concern has raised the need to develop environmentally friendly and cost-effective strategies, particularly for keeping pace with the demands of the growing population. The use of nanobiofertilizers in agriculture opens a new chapter in the sustainable production of crops. The application of nanoparticles improves the growth and stress tolerance in plants. Inoculation of biofertilizers is another strategy explored in agriculture. The combination of nanoparticles and biofertilizers produces nanobiofertilizers, which are cost-effective and more potent and eco-friendly than nanoparticles or biofertilizers alone. Nanobiofertilizers consist of biofertilizers encapsulated in nanoparticles. Biofertilizers are the preparations of plant-based carriers having beneficial microbial cells, while nanoparticles are microscopic (1–100 nm) particles that possess numerous advantages. Silicon, zinc, copper, iron, and silver are the commonly used nanoparticles for the formulation of nanobiofertilizer. The green synthesis of these nanoparticles enhances their performance and characteristics. The use of nanobiofertilizers is more effective than other traditional strategies. They also perform their role better than the common salts previously used in agriculture to enhance the production of crops. Nanobiofertilizer gives better and more long-lasting results as compared to traditional chemical fertilizers. It improves the structure and function of soil and the morphological, physiological, biochemical, and yield attributes of plants. The formation and application of nanobiofertilizer is a practical step toward smart fertilizer that enhances growth and augments the yield of crops. The literature on the formulation and application of nanobiofertilizer at the field level is scarce. This product requires attention, as it can reduce the use of chemical fertilizer and make the soil and crops healthy. This review highlights the formulation and application of nanobiofertilizer on various plant species and explains how nanobiofertilizer improves the growth and development of plants. It covers the role and status of nanobiofertilizer in agriculture. The limitations of and future strategies for formulating effective nanobiofertilizer are mentioned.

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Section: Constraints and Future Perspectives Of Nanobiofertilizermentioning

confidence: 99%

Improvement of Plant Responses by Nanobiofertilizer: A Step towards Sustainable Agriculture

et al. 2022

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“…Keratinases are a special group of proteases that have the ability to degrade insoluble and hard kreatine and are distinguished from other proteases due to their great diversity in biochemical properties and different kreatine-containing substrates such as feathers, wool, nails and hair. Therefore, they have been considered valuable catalysts in the industry [1,5]. Keratinases have been isolated from different organisms such as bacteria, actinomycetes, archaebacteria and fungi.…”

Section: Discussionmentioning

confidence: 99%

“…The related conventional waste management methods, which are usually costly methods, include land lling, incineration and other mechanical methods destroying the rich sources of enzymes, proteins, and amino acids, and causing uncontrolled air, soil and water pollutions threatening the human health and other living organisms. Accordingly, an urgent need is felt to approach alternative waste management methods to reduce such public health, economic and environmental risks [5,6]. The presence of various keratinolytic microorganisms in nature led the researchers to focus on applying biological methods [7].…”

Section: Introductionmentioning

confidence: 99%

Characterization of a Novel Keratinase With Surfactant Stability in a Wide Range of pH Activity From a Native Isolate, Bacillus Mojavensis FUM125

Jeddi

Sharifmoghadam

Asoodeh

et al. 2021

Preprint

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Keratinases are enzymes with the most diverse sources and applications. Different forms of keratinase have been applied in environment and variety of industries, highlighting the necessity for novel potential keratinases, which could be applicable in variety of industries. Accordingly, the present study aimed to identify and characterize a novel keratinase producing bacterium with high potential in variety of industries. In the present study, the native isolate of Bacillus sp. FUM125 was isolated, identified and optimized for the keratinolytic activity. The keratinase was purified and characterized using biochemical assays. The Bacillus sp. FUM125 isolate was identified as Bacillus mojavensis R-OH-1 with 99.8% similarity. The isolate showed the maximum keratinolytic activity at pH of 8.5 after 24-hour incubation at 37°C (2.1-fold enzyme production). According to the biochemical analysis, the keratinase belonged to a serine protease family, whit 33.5 kDa molecular weight and was stable in a wide range of pH and temperature with maximum keratinolytic activity at 60°C and pH 8. Among the metal ions, K+, Ca2+, Na2+ and Mg2+ increased the enzyme activity. The activity was increased by the reducing agents of DTT and beta-mercaptoethanol. Based on the substrate profile findings, the enzyme was active in various soluble and insoluble substrates. The enzyme showed a half-life of 98 min in the optimal temperature and the ratio of keratinolytic:caseinolytic to be 0.95. Our enzyme with higher temperature and pH stability compared to existing commercial enzymes can be considered as a potential candidate for use in various industries.

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“…Many amino acids can act as biostimulants, as they regulate normal and stress-induced metabolism of plants [ 149 ]. IAA is a phytohormone synthesized by both plants and keratinolytic microbes from tryptophan; therefore, the presence of this amino acid or IAA itself in biofertilizer can greatly contribute to faster and more efficient plant development.…”

Section: Applicationmentioning

confidence: 99%

Keratinases as Versatile Enzymatic Tools for Sustainable Development

2021

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To reduce anthropological pressure on the environment, the implementation of novel technologies in present and future economies is needed for sustainable development. The food industry, with dairy and meat production in particular, has a significant environmental impact. Global poultry production is one of the fastest-growing meat producing sectors and is connected with the generation of burdensome streams of manure, offal and feather waste. In 2020, the EU alone produced around 3.2 million tonnes of poultry feather waste composed primarily of keratin, a protein biopolymer resistant to conventional proteolytic enzymes. If not managed properly, keratin waste can significantly affect ecosystems, contributing to environmental pollution, and pose a serious hazard to human and livestock health. In this article, the application of keratinolytic enzymes and microorganisms for promising novel keratin waste management methods with generation of new value-added products, such as bioactive peptides, vitamins, prion decontamination agents and biomaterials were reviewed.

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Chicken Feather Waste Hydrolysate as a Superior Biofertilizer in Agroindustry

Cited by 56 publications

References 176 publications

Improvement of Plant Responses by Nanobiofertilizer: A Step towards Sustainable Agriculture

Improvement of Plant Responses by Nanobiofertilizer: A Step towards Sustainable Agriculture

Characterization of a Novel Keratinase With Surfactant Stability in a Wide Range of pH Activity From a Native Isolate, Bacillus Mojavensis FUM125

Keratinases as Versatile Enzymatic Tools for Sustainable Development

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