Comparison of new castor (Ricinus communis L.) genotypes in the mediterranean area and possible valorization of residual biomass for insect rearing

Zanetti, Federica; Chieco, Camilla; Alexopoulou, E.; Vecchi, Alessandra; Bertazza, Giampaolo; Monti, Andrea

doi:10.1016/j.indcrop.2017.04.055

Cited by 17 publications

(17 citation statements)

References 23 publications

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“…These results are consistent with numerous reports affirming that the fatty acid profiles of insects reflect the composition of their food [9], thus reinforcing the fact that the nutritive value of insect meal could be amplified by acting on the alimentary substrate [29]. Moreover, although the fatty acid content of silkworm pupae is different from that of fish meal, which is especially rich in long chain n-3 polyunsatured fatty acids, the high content of C 18:3, a precursor of the n-3 series, makes these insects good candidates as oil sources in the formulation of feedstuff.…”

Section: Discussionsupporting

confidence: 92%

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The Effect of Strain and Rearing Medium on the Chemical Composition, Fatty Acid Profile and Carotenoid Content in Silkworm (Bombyx mori) Pupae

Chieco

Morrone

Bertazza

et al. 2019

Animals

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The overexploitation of fishmeal and soy for the feedstuff industry has provided an opportunity to employ insects as an unconventional and more environmental friendly protein source. The evaluation of the nutritive properties of different insect species has consequently become a priority. The present study compares the pupal nutritive composition of two silkworm strains (White Cocoon Polyhybrid and Golden Yellow Cocoon Nistari) fed on two different rearing media (fresh mulberry leaves and a commercial artificial diet). Our results provide evidence that the composition of the feeding substrate strongly influences the fat and protein content of silkworm pupae. The two tested strains had higher fat and lower protein contents when fed with silkworm natural food (mulberry leaves) with respect to the commercial artificial diet. The analysis also showed that the n3/n6 ratio was affected almost exclusively by the feed substrate factor. On the contrary, the carotenoid content in pupae was specifically determined by the strain. The study identifies the interesting opportunity offered by silkworm pupae, which are usually a waste product of the silk-reeling process, to be used as alternative animal protein sources in a fully-closed circular production.

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Section: Discussionsupporting

confidence: 92%

“…After the total lipid determination, all samples were re-suspended in 4 mL of heptane for fatty acid profile detection according to [29]. Lipid extract (1 mL) was macerated in 400 µL of a 0.1 M KOH solution in methanol and vortexed for 1 min.…”

Section: Methodsmentioning

confidence: 99%

The Effect of Strain and Rearing Medium on the Chemical Composition, Fatty Acid Profile and Carotenoid Content in Silkworm (Bombyx mori) Pupae

Chieco

Morrone

Bertazza

et al. 2019

Animals

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“…Leaf extracts have also shown antimicrobial potential and antifungal activity [136][137][138]. Castor bean leaves are used, especially in India and Africa [139,140], as food for Samia cynthia, a moth used to produce silk; in Italy, the use of senescent leaves for the eri-silkworm artificial diet has provided a promising opportunity for valorizing residual biomass to good use after biorefinery [141]. Moreover, the reactive surface of CB leaf powder has been studied as a green adsorbent for the removal of heavy metals from natural river water [142].…”

Section: Castor Bean Productsmentioning

confidence: 99%

Biofuel Production with Castor Bean: A Win–Win Strategy for Marginal Land

et al. 2020

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The urgency to reduce resource depletion and waste production is expected to lead to an economy based on renewable resources. Biofuels, for instance, are a great green alternative to fossil fuel, but they are currently derived from edible vegetable oils such as soybean, palm, and sunflower. Concerns have been raised about the social–economic implication and ecological impacts of biodiesel production. Cultivating new lands as biodiesel feedstock rather than food supply, with the consequent increase in food prices, leads to so-called indirect land-use change (ILUC). Establishing bioenergy crops with phytoremediation ability on contaminated soils offers multiple benefits such as improving soil properties and ecosystem services, decreasing soil erosion, and diminishing the dispersion of potentially toxic elements (PTEs) into the environment. Castor bean is an unpalatable, high-biomass plant, and it has been widely demonstrated to possess phytoremediation capability for several PTEs. Castor bean can grow on marginal lands not suitable for food crops, has multiple uses as a raw material, and is already used in biodiesel production. These characteristics make it perfect for sustainable biodiesel production. Linking biofuel production with environmental remediation can be considered a win–win strategy.

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“…It is also worth mentioning that Europe is one of the main importers of castor oil and the demand has largely increased during the last few years [14]. Results of field trials carried out in different Mediterranean countries for the evaluation of different castor cultivars reported a seed yield potential up to 4 Mg ha −1 [19,20]. This promising finding, along with the increased demands for castor oil imports during the last few years, identifies castor bean as an ideal non-food crop [21] for Europe.…”

Section: Introductionmentioning

confidence: 99%

The Eco-Efficiency of Castor Supply Chain: A Greek Case Study

Pari¹,

Alexopoulou

Stefanoni³

et al. 2022

Agriculture

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Castor is a candidate crop that grows in marginal lands in the Mediterranean area. It can be grown by utilizing minimal resources to provide unique industrial chemicals or to serve as an energy crop. However, it can be also cultivated with intensive inputs providing higher yields. Whether a high input or a low input scheme is more sustainable depends on the economic and environmental impacts of each case. The objective of the present study, therefore, was to evaluate these impacts under the Mediterranean climate and farming conditions by examining two alternative scenarios: a castor crop grown on a low-inputs field vs. a crop grown in a high-inputs one. The environmental impacts were estimated by following a Life Cycle Assessment (LCA) methodology based on GHG emissions. Furthermore, a sensitivity analysis was performed by switching the functional unit from 1 Mg of castor oil to 1 hectare. The economic feasibility of the castor crop production was assessed by calculating the gross margin, which is referred to the difference between revenues and the variable costs due to the agricultural phases. In addition, the ratio between gross margin and GWP (Global Warming Potential) emissions was applied to calculate the economic performance (gross margin) per unit of environmental burden. Findings showed that the castor oil produced by high inputs resulted in a more sustainable scenario due to its higher yield than low-inputs ones. On the other hand, sensitivity analysis showed that the field management with low inputs showed GHG emissions that were 27% lower than those emitted from the field management with high inputs. Moreover, from an economic point of view, by switching the field management from low inputs to high ones, the Gross Margin increased by about 73%. Finally, the high-inputs scenario showed the best ratio between economic performance and GHG emitted into the atmosphere.

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Comparison of new castor (Ricinus communis L.) genotypes in the mediterranean area and possible valorization of residual biomass for insect rearing

Cited by 17 publications

References 23 publications

The Effect of Strain and Rearing Medium on the Chemical Composition, Fatty Acid Profile and Carotenoid Content in Silkworm (Bombyx mori) Pupae

The Effect of Strain and Rearing Medium on the Chemical Composition, Fatty Acid Profile and Carotenoid Content in Silkworm (Bombyx mori) Pupae

Biofuel Production with Castor Bean: A Win–Win Strategy for Marginal Land

The Eco-Efficiency of Castor Supply Chain: A Greek Case Study

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