AnchoisFert: A New Organic Fertilizer from Fish Processing Waste for Sustainable Agriculture

Abstract

The "AnchoisFert" solid residue comprised of milled anchovy leftovers after fish oil extraction with biobased limonene is a powerful organic fertilizer. Employed to promote the growth of Tropea's red onion (Allium cepa), the fertilizer turns out to largely superior to commonly used organic (manure) and chemical (NPK) fertilizers. Rich in proteins, organic carbon, flavonoids, magnesium, potassium, phosphate and sulphate, and devoid of antibiotics and antibiotic resistance genes, the new organic fertilizer can replace both conventional organic and inorganic fertilizers. The discovery closes the fishing material cycle for one of the most fished species across the seas opening the route to a new class of organic fertilizers of exceptional performance derived from abundant biowaste via a low-cost, environmentally-friendly circular economy process.

Volcanic ash as multi‐nutrient mineral fertilizer: Science and early applications

“…As clearly noted by the pioneering researchers in the field, 4,5,18,24,26 its large-scale use will bring about also significant environmental advantages especially in combination with new generation organic fertilizers such as those obtained from biowaste. 44 Providing a unified picture from scattered and poorly known research findings, this study will hopefully accelerate such progress.…”

Limonene as natural product extraction solvent

“…28 Antibacterial and antioxidant limonene, furthermore, protects the solid residue of anchovy fillet leftovers from rapid microbial spoilage, affording instead a new organic fertilizer rich in proteins, minerals, and flavonoids of exceptional efficacy. 29 The use of limonene as extraction and stabilization solvent (the LimoFish process), in other words, allows to convert anchovy fillet leftovers into a precious fish oil (AnchoisOil) and a fertilizer ("AnchoisFert") whose essential, quasi-essential and nonessential amino acids would otherwise be lost in the environment. 30 This substantially improves the overall sustainability of anchovy fishing, processing and consumption.…”

Soils and olericultural practices in circumpolar region of Russia at present and in the past

“…The usage of fish composts is not unique to Arctic regions, fish waste has traditionally been used as fertilizer since ancient times, for example, by Indians in North America (Ceci, 1975), in Alaska (Chambers, 2011), and is actively used in agriculture today (Frederick et al, 1989;López-Mosquera et al, 2011;Ahuja et al, 2020;Lanno et al, 2020). Fish fertilizers and composts decompose quickly and significantly enrich soils with nutrients (especially N and P) (López-Mosquera et al, 2011;Radziemska et al, 2019;Muscolo et al, 2021), so their application in nutritional deficit conditions in the Arctic soils is very reasonable and gives good results. The soils of the abandoned vegetable garden are over-moistened, the profile is marked with gleyic colors and redoximorphic features (Figure 7), the topsoil horizons are full of undecomposed pieces of wood, and sometimes there are anthropogenic artifacts (broken glass and other debris), especially in the Apu1 (20-30 cm) horizon.…”