Chemically versus thermally processed brown shrimp shells or Chinese mitten crab as a source of chitin, nutrients or salts and as microbial stimulant in soilless strawberry cultivation

Vandecasteele, Bart; Amery, Fien; Ommeslag, Sarah; Vanhoutte, Kaitlyn; Visser, Rian; Robbens, Johan; Tender, Caroline De; Debode, Jane

doi:10.1016/j.scitotenv.2021.145263

Cited by 16 publications

(11 citation statements)

References 37 publications

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“…One of the main advantages of chitin recovery from crustacean shells is that this unused resource can provide an additional source of chitin [35].…”

Section: Extraction Procedures Of Chitin From Crustaceansmentioning

confidence: 99%

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Electrospinning of Chitosan for Antibacterial Applications—Current Trends

2021

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Chitosan is a natural biopolymer that can be suitable for a wide range of applications due to its biocompatibility, rigid structure, and biodegradability. Moreover, it has been proven to have an antibacterial effect against several bacteria strains by incorporating the advantages of the electrospinning technique, with which tailored nanofibrous scaffolds can be produced. A literature search is conducted in this review regarding the antibacterial effectiveness of chitosan-based nanofibers in the filtration, biomedicine, and food protection industries. The results are promising in terms of research into sustainable materials. This review focuses on the electrospinning of chitosan for antibacterial applications and shows current trends in this field. In addition, various aspects such as the parameters affecting the antibacterial properties of chitosan are presented, and the application areas of electrospun chitosan nanofibers in the fields of air and water filtration, food storage, wound treatment, and tissue engineering are discussed in more detail.

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“…One of the main advantages of chitin recovery from crustacean shells is that this unused resource can provide an additional source of chitin [35].…”

Section: Extraction Procedures Of Chitin From Crustaceansmentioning

confidence: 99%

“…Furthermore, chemical or enzymatic treatments are provided to remove colorants and lipids. In addition to deproteinization by NaOH, a partial deacetylation of chitin will take place, as well as hydrolysis of the biopolymer, resulting in a reduction in molecular weight [35].…”

Section: Extraction Procedures Of Chitin From Crustaceansmentioning

confidence: 99%

Electrospinning of Chitosan for Antibacterial Applications—Current Trends

2021

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“…A sustainable growing media amendment under investigation is chitin and chitosan, which are waste products of the shellfish industry [ 48 ]. Studies have been carried out assessing the potential benefits these waste products have on the production of various crops [ 49 , 50 , 51 , 52 , 53 ]. A 2004 study observed an approximate 20% increase in yield for two out of three tomato trials with chitosan applied to soils and leaves as 2.5–5 mL/L solutions [ 53 ].…”

Section: Factors Affecting Tomato Crop Cultivation and Its Nutritiona...mentioning

confidence: 99%

Tomatoes: An Extensive Review of the Associated Health Impacts of Tomatoes and Factors That Can Affect Their Cultivation

Collins

Bowyer

Tsouza

et al. 2022

Biology

115

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This review outlines the health benefits associated with the regular consumption of tomatoes and tomato products. The first section provides a detailed account of the horticultural techniques that can impact the quality of the fruit and its nutritional properties, including water availability, light intensity, temperature, and growing media. The next section provides information on the components of tomato that are likely to contribute to its health effects. The review then details some of the health benefits associated with tomato consumption, including anticancer properties, cardiovascular and neurodegenerative diseases and skin health. This review also discusses the impact tomatoes can have on the gut microbiome and associated health benefits, including reducing the risk of inflammatory bowel diseases. Other health benefits of eating tomatoes are also discussed in relation to effects on diabetes, the immune response, exercise recovery, and fertility. Finally, this review also addresses the negative effects that can occur as a result of overconsumption of tomato products and lycopene supplements.

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“…Different types of organic fertilizers are characterized by variable N release rates and elemental compositions, from organic fertilizers with very high N mineralization to organic fertilizers with a risk of induced N immobilization [22]. Chitin is an example of an organic fertilizer characterized by high N mineralization with different functions; besides a substantial N release of over 50% of the total N after 100 days, chitin may also have important effects on the microbiome of growing media [23,24]. That microbiome is important in terms of both the rhizosphere and the bulk material, and can result in improved disease suppression [23]; however, it also affects the nitrification process [17,23,25].…”

Section: Interaction Between Growing Media and Organic Fertilizersmentioning

confidence: 99%

“…Chitosan is a natural amino-polysaccharide derived from chitin, with a good chelating ligand capable of binding to a variety of metal ions [26]. The application of chitin, however, may result in P and K imbalances when used in growing media [23,24]. Within the range of organic fertilizers, plant-based composts are characterized by a slower N release than other fertilizers [22,27].…”

Section: Interaction Between Growing Media and Organic Fertilizersmentioning

confidence: 99%

Sustainable Growing Media Blends with Woody Green Composts: Optimizing the N Release with Organic Fertilizers and Interaction with Microbial Biomass

Vandecasteele¹,

Loo²,

Ommeslag³

et al. 2022

Agronomy

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The aim of the current study was to create a high quality growing medium blend that replaces 70 vol% peat with 40 vol% woody green compost and 30 vol% bark compost and organic fertilizers (i.e., blood meal and chitin), all locally sourced. A range of “woody composts”, i.e., green composts based on feedstock selection with mainly woody material from tree prunings, were produced for this purpose at green compost facilities. First, the woody composts were characterized chemically and biologically, including their microbial biomass and net N release. In comparison with regular green composts or vegetable, fruit and garden (VFG) waste composts, woody composts are more suitable for use in growing media due to their lower pH, EC and inorganic C content; however, the woody compost had a low N mineralization rate. Three types of composts supported a higher microbial biomass than wood fiber or bark compost. The additional mineral N release after 100 days for compost mixed with blood meal was tested for different VFG and green composts. A significantly higher additional net N release was measured for composts with higher initial mineral N concentrations (317 mg Nmin/L) as well as VFG composts (417 mg Nmin/L) than for green composts with a lower initial mineral N concentration (148 mg Nmin/L). In a last step, woody compost, bark compost, wood fiber, coir and peat were mixed in different ratios, resulting in six blends ranging from 100% peat-free to100% peat. Two batches of woody compost were compared, and the blends were mixed with blood meal or chitin. A strong effect of both the organic fertilizer and the blend composition on the mineral N release was observed, with a clear link between the microbial biomass and the net N release. There was a significant negative correlation between the net change in microbial biomass and the net N release (R = −0.85), which implies that a larger increase in microbial biomass during incubation with the organic fertilizer resulted in less N mineralization. The blends containing woody compost scored better for nitrification activity, as the NH4-N concentrations were lower in these than for the blends without woody compost. For the peat blends, no effect on the microbial biomass was observed after addition of organic fertilizers; mineral N did increase, however. Woody composts have the potential to be used in high vol% in growing media blends, but the blends still need further optimization when supplemented with organic fertilizers.

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Chemically versus thermally processed brown shrimp shells or Chinese mitten crab as a source of chitin, nutrients or salts and as microbial stimulant in soilless strawberry cultivation

Cited by 16 publications

References 37 publications

Electrospinning of Chitosan for Antibacterial Applications—Current Trends

Electrospinning of Chitosan for Antibacterial Applications—Current Trends

Tomatoes: An Extensive Review of the Associated Health Impacts of Tomatoes and Factors That Can Affect Their Cultivation

Sustainable Growing Media Blends with Woody Green Composts: Optimizing the N Release with Organic Fertilizers and Interaction with Microbial Biomass

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