Effects of moisture content of food waste on residue separation, larval growth and larval survival in black soldier fly bioconversion

Cheng, Jackie; Chiu, Sam L.H.; Lo, Irene M.C.

doi:10.1016/j.wasman.2017.05.046

Cited by 165 publications

(149 citation statements)

References 17 publications

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“…Cheng et al . (2017) found that reducing the moisture content of food waste from 800 to 750 g kg −1 and then to 700 g kg −1 reduced larval growth rate . The observations from prior research are consistent with the present study; larvae growth increased with increasing moisture content.…”

Section: Resultssupporting

confidence: 90%

“…The larvae grew to the greatest weight, developed more quickly and required less food when cultivated at 700 g kg −1 moisture content than at 550 g kg −1 moisture content and were unable to develop on diets at 400 g kg −1 moisture. Cheng et al (2017) found that reducing the moisture content of food waste from 800 to 750 g kg −1 and then to 700 g kg −1 reduced larval growth rate. 45 The observations from prior research are consistent with the present study; larvae growth increased with increasing moisture content.…”

Section: Moisture Contentmentioning

confidence: 99%

“…Cheng et al (2017) found that reducing the moisture content of food waste from 800 to 750 g kg −1 and then to 700 g kg −1 reduced larval growth rate. 45 The observations from prior research are consistent with the present study; larvae growth increased with increasing moisture content. While moisture content higher than 700 g kg −1 could be tested, the impact of increasing moisture content on the reduction in oxygen diffusion would need to be considered.…”

Section: Moisture Contentmentioning

confidence: 99%

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Cultivation of black soldier fly larvae on almond byproducts: impacts of aeration and moisture on larvae growth and composition

et al. 2018

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BACKGROUNDThe increasing production of almonds worldwide has resulted in the significant generation of byproduct streams that require end uses. One potential use for byproducts is for cultivation of additional food sources including insects. Studies were performed to determine if black soldier fly larvae (Hermetia illucens L.) could be cultivated on almond byproducts (hulls and shells) and to examine the effect of aeration and moisture on larvae growth and hull composition.RESULTSIncreasing aeration from 0.04 to 0.36 mL min−1 g dry weight−1 tripled the harvest weight of larvae and increased larvae yield by a factor of five. Larvae calcium content increased by 18% with an increase in aeration from 0.04 to 0.95 mL min−1 g dry weight−1. Moisture content also affected harvest dry weight and yield; increasing moisture content from 480 g kg−1(wet basis) to 680 g kg−1 increased harvest weight by 56% and yield by a factor of 2. Variables did not affect larvae methionine and cysteine content. Low moisture content and aeration rate yielded an environment that supported microbial consumption of hulls over larvae consumption and growth.CONCLUSIONSThe results demonstrate that almond hulls are a suitable feedstock for larvae production under controlled management of moisture content and aeration. © 2018 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Section: Resultssupporting

confidence: 90%

Section: Moisture Contentmentioning

confidence: 99%

Section: Moisture Contentmentioning

confidence: 99%

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Cultivation of black soldier fly larvae on almond byproducts: impacts of aeration and moisture on larvae growth and composition

et al. 2018

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“…The performance obtained in our benchtop trials may vary when transferred to an industrial scale. For instance, the large volumes of waste used as well as the high larval concentration could result in environmental oxygen depletion and heat production . Attention should then be given to the airflow to guarantee appropriate rearing conditions.…”

Section: Discussionmentioning

confidence: 99%

“…For instance, the large volumes of waste used as well as the high larval concentration could result in environmental oxygen depletion and heat production. 51 Attention should then be given to the airflow to guarantee appropriate rearing conditions. In addition, to optimize land use, insect breeding should exploit the verticality of the breeding structure.…”

Section: Proximate and Fatty Acid Compositions Of The Bsf Larvaementioning

confidence: 99%

Effect of rearing substrate on growth performance, waste reduction efficiency and chemical composition of black soldier fly (Hermetia illucens) larvae

et al. 2018

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Effects of flaxseed cake fortification on bread shelf life, and its possible use as feed for Tenebrio molitor larvae in a circular economy: preliminary results

et al. 2021

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BACKGROUND: Bread represents a significant share of food waste worldwide. The extension of the bread shelf life together with innovative systems of food waste treatment might decrease waste biomass decay, the need for transportation, and the need for storage. In recent years, insects have been selected as a valuable tool for food waste treatment owing to their capability to transform low-value food waste into biomass with high nutritional value. Bakery wastes can be used profitably for this purpose. This work had two objectives: (i) to measure the impact of flaxseed cake fortification on bread shelf life depending on the leavening agent (baker's yeast vs sourdough); (ii) to evaluate the possible reuse of the stale bread fortified with flaxseed cake for Tenebrio molitor rearing. RESULTS: Our results showed that fortification seemed to slow the hardening rate of bread, particularly if baker's yeast was used. The time necessary for mold to appear in sourdough bread doubled (from 2 to 4 days). The addition of flaxseed cake to the recipe determined an increase of its scrap consumption by T. molitor larvae. We also observed a significant increase in the body mass of the T. molitor larvae fed with bread obtained with the brewer's yeast with respect to larvae fed with the sourdough.CONCLUSION: Taken together, these preliminary data can indicate that sourdough bread fortified with 5% of flaxseed cake can represent a promising tool to reduce food waste and to recycle bread scraps by a novel zero-waste approach.

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Effects of moisture content of food waste on residue separation, larval growth and larval survival in black soldier fly bioconversion

Cited by 165 publications

References 17 publications

Cultivation of black soldier fly larvae on almond byproducts: impacts of aeration and moisture on larvae growth and composition

Cultivation of black soldier fly larvae on almond byproducts: impacts of aeration and moisture on larvae growth and composition

Effect of rearing substrate on growth performance, waste reduction efficiency and chemical composition of black soldier fly (Hermetia illucens) larvae

Effects of flaxseed cake fortification on bread shelf life, and its possible use as feed for Tenebrio molitor larvae in a circular economy: preliminary results

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