Comparative study of two types of pre-extraction treatment (drying or non-drying) on physicochemical, structural and functional properties of extracted insect proteins from Tenebrio molitor larvae

Zhang, Fengxue; Xu, Yining; Kong, Baohua; Chen, Qian; Sun, Fangda; Zhang, Hongwei; Liu, Qian

doi:10.1016/j.crfs.2022.09.004

Cited by 18 publications

(4 citation statements)

References 55 publications

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“…In this study, the COX values evaluated for the T. molitor larvae fed with diets supplemented with cucumber and tomato wastes were close to 4 (Table 6), similar to those obtained by Kotsou et al [16]. These COX values were higher than those obtained for food oils, such as olive oil, palm oil, and fish oil [42]. However, the values are lower than those obtained for sunflower oil (around 6) and canola oil (around 4.6) [43,44].…”

Section: Diet Influence On T Molitor Larvae's Nutritional Valuesupporting

confidence: 89%

Improving Tenebrio molitor Growth and Nutritional Value through Vegetable Waste Supplementation

López-Gámez,

del Pino-García,

López-Bascón

et al. 2024

Foods

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Huge amounts of vegetable wastes are generated by the food industry. Their bioconversion into valuable products (e.g., insect flours or biofertilizer) through insect farming is a promising solution to reduce their negative environmental and economic impacts. This study evaluates the growth of Tenebrio molitor larvae and their nutritional profile after supplementing their diets with vegetable wastes. Over a 6-week period, 45-day larvae were fed a diet comprising wheat bran supplemented (1:1) with cucumber or tomato wastes from both conventional and ecological crops. The control diet consisted of wheat bran and an equivalent amount of water to compensate for the waste moisture. Larval weight was measured weekly, and length measures were taken fortnightly. Nutritional composition and fatty acid profile were analyzed at the end of the study in 90-day larvae. Regardless of using vegetable waste from conventional or ecological harvesting, the weight of 6-week supplemented larvae almost doubled that of larvae fed with just wheat bran, and their length was 15% higher. Supplementation also increased larval polyunsaturated fatty acid percentage by 22–37%, with linoleic acid being the most abundant. Likewise, larval protein content reached 50% after supplementation. This study demonstrates that both cucumber and tomato wastes from conventional or ecological crops are excellent supplements for T. molitor’s diet, improving their nutritional value and reducing the time necessary for larvae growth.

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Section: Diet Influence On T Molitor Larvae's Nutritional Valuesupporting

confidence: 89%

Improving Tenebrio molitor Growth and Nutritional Value through Vegetable Waste Supplementation

López-Gámez,

del Pino-García,

López-Bascón

et al. 2024

Foods

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“…1a) the PCL/LP nanocomposite bers (Fig. 1c) showed three new peaks at 3296 cm -1 corresponding to amide groups (amide, NH stretching), 1647 cm − 1 (amide I, C = O stretching), and 1543 cm − 1 (amide II, NH bending), coinciding with the effect of LP in PCL/LP nano bers [33]. The characteristic peaks of the original LP are shown in Figure S1.…”

Section: Resultsmentioning

confidence: 79%

Preparation and Characterization of Biodegradable Polyester/Natural Protein Electrospun Nanofiber with Wound Healing Activity

Wu,

Wang,

2024

Preprint

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The protein from black soldier fly larvae was used as a functional ingredient of a new fiber composite for wound scaffolding. Larvae protein powder (LP) was blended with biodegradable poly(ε-caprolactone) (PCL) and processed in an electrospinning machine using a coaxial feeding/mixing method to produce nanofibers approximately 100–350 nm in diameter. To improve the dispersion and interface bonding of various PCL/LP nanofiber components, a homemade compatibilizer, maleic anhydride-grafted poly(ε-caprolactone) (MPCL), was added to form MPCL/LP nanofibers. The structure, morphology, mechanical properties, water absorption, biocompatibility, wound healing, and biodegradability of PCL/LP and MPCL/LP nanofiber mats were investigated. The results showed enhanced adhesion in the MPCL/LP nanofiber mats compared to PCL/LP nanofiber mats; additionally, the MPCL/LP nanofibers exhibited better tensile strength at break of 0.7–2.2 and a Young's modulus of 9.0–22.8 MPa. Decomposition tests using a simulated body fluid revealed that the addition of LP enhanced the decomposition rate of both PCL/LP and MPCL/LP nanofiber mats and in vitro protein release. Cell proliferation and migration analysis indicated that PCL, MPCL, and their composites were biocompatible for fibroblast (FB) growth. Cell-cycle assays conducted by FBs on PCL/LP and MPCL/LP nanofiber samples showed normal cell growth distribution and biodegradability in a 30-day soil test. When the LP content was 20 wt.%, the degradation rate exceeded 50%. This suggests the potential of these materials as a new scaffold material and as a novel green nanofiber for environmental pollution reduction.

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Section: Proteins In Edible Insectsmentioning

confidence: 99%

“…It is important to evaluate the functional properties of insect proteins such as solubility, foaming and emulsifying properties, gelation, water holding capacity and oil holding capacity. 43,44 Table 1 shows the functional properties of insect derived ingredients. Among all the functional properties, solubility is certainly the most important one as many functional properties are influenced by the extent of protein solubilized in aqueous solution.…”

Section: Functional Properties Of Insect Proteinsmentioning

confidence: 99%

Current state of insect proteins: extraction technologies, bioactive peptides and allergenicity of edible insect proteins

Ma,

Mondor,

Goycoolea Valencia

et al. 2023

Food Funct.

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Comparative study of two types of pre-extraction treatment (drying or non-drying) on physicochemical, structural and functional properties of extracted insect proteins from Tenebrio molitor larvae

Cited by 18 publications

References 55 publications

Improving Tenebrio molitor Growth and Nutritional Value through Vegetable Waste Supplementation

Improving Tenebrio molitor Growth and Nutritional Value through Vegetable Waste Supplementation

Preparation and Characterization of Biodegradable Polyester/Natural Protein Electrospun Nanofiber with Wound Healing Activity

Current state of insect proteins: extraction technologies, bioactive peptides and allergenicity of edible insect proteins

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