scholarly journals Effects of Killing Methods on Lipid Oxidation, Colour and Microbial Load of Black Soldier Fly (Hermetia illucens) Larvae

Animals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 182 ◽  
Author(s):  
Jennifer Larouche ◽  
Marie-Hélène Deschamps ◽  
Linda Saucier ◽  
Yolaine Lebeuf ◽  
Alain Doyen ◽  
...  
Keyword(s):  
Lipid Oxidation ◽  
Animal Feed ◽  
Microbiological Quality ◽  
Regulatory Requirements ◽  
Black Soldier Fly ◽  
Promising Alternative ◽  
Optimized Protocol ◽  
C 30 ◽  
Hermetia Illucens Larvae

Black soldier fly (BSF) larvae represent a promising alternative ingredient for animal feed. Post-production processing can, however, affect their quality. This project aimed to optimize larval killing by comparing the effects on the nutritional and microbiological quality of 10 methods, i.e., blanching (B = 40 s), desiccation (D = 60 °C, 30 min), freezing (F20 = −20 °C, 1 h; F40 = −40 °C, 1 h; N = liquid nitrogen, 40 s), high hydrostatic pressure (HHP = 3 min, 600 MPa), grinding (G = 2 min) and asphyxiation (CO2 = 120 h; N2 = 144 h; vacuum conditioning, V = 120 h). Some methods affected the pH (B, asphyxiation), total moisture (B, asphyxiation and D) and ash contents (B, p < 0.001). The lipid content (asphyxiation) and their oxidation levels (B, asphyxiation and D) were also affected (p < 0.001). Killing methods altered the larvae colour during freeze-drying and in the final product. Blanching appears to be the most appropriate strategy since it minimizes lipid oxidation (primary = 4.6 ± 0.7 mg cumen hydroperoxide (CHP) equivalents/kg; secondary = 1.0 ± 0.1 mg malondialdehyde/kg), reduces microbial contamination and initiates dehydration (water content = 78.1 ± 1.0%). We propose herein, an optimized protocol to kill BSF that meet the Canadian regulatory requirements of the insect production and processing industry.

scholarly journals Valorisation of Organic Waste By-Products Using Black Soldier Fly (Hermetia illucens) as a Bio-Convertor

2021 ◽  
Vol 13 (15) ◽  
pp. 8345
Author(s):  
Kieran Magee ◽  
Joe Halstead ◽  
Richard Small ◽  
Iain Young
Keyword(s):  
Food Waste ◽  
Fish Feed ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
High Quality Protein ◽  
The Face ◽  
Beet Pulp ◽  
By Products ◽  
Hermetia Illucens Larvae

One third of food produced globally is wasted. Disposal of this waste is costly and is an example of poor resource management in the face of elevated environmental concerns and increasing food demand. Providing this waste as feedstock for black soldier fly (Hermetia illucens) larvae (BSFL) has the potential for bio-conversion and valorisation by production of useful feed materials and fertilisers. We raised BSFL under optimal conditions (28 °C and 70% relative humidity) on seven UK pre-consumer food waste-stream materials: fish trimmings, sugar-beet pulp, bakery waste, fruit and vegetable waste, cheese waste, fish feed waste and brewer’s grains and yeast. The nutritional quality of the resulting BSFL meals and frass fertiliser were then analysed. In all cases, the volume of waste was reduced (37–79%) and meals containing high quality protein and lipid sources (44.1 ± 4.57% and 35.4 ± 4.12%, respectively) and frass with an NPK of 4.9-2.6-1.7 were produced. This shows the potential value of BSFL as a bio-convertor for the effective management of food waste.

scholarly journals Influence of wastewater reuse on the microbiological quality of sunflowers for animal feed

2013 ◽  
Vol 8 (2) ◽  
Author(s):  
Roseanne Santos de Carvalho ◽  
José Sebastião dos Santos Filho ◽  
Larissa Oliveira Gama de Santana ◽  
Danielle Almeida Gomes ◽  
Luciana Coêlho Mendonça ◽  
...  
Keyword(s):  
Animal Feed ◽  
Wastewater Reuse ◽  
Microbiological Quality

scholarly journals Moderate heat treatments enhance the quality of traded natural shea butter

2020 ◽  
Vol 22 (1) ◽  
pp. 17-26
Author(s):  
A.O. Oyedele ◽  
O.A. Igbeneghu ◽  
T.I. Alade ◽  
O.O. Akinmusire
Keyword(s):  
Microbiological Quality ◽  
Poor Quality ◽  
Heat Treatments ◽  
Shea Butter ◽  
Physicochemical Quality ◽  
Melting Temperatures ◽  
Before And After ◽  
Human Use ◽  
C 30

Natural shea butter (NSB), extracted by traditional methods resulting in its poor quality, is nevertheless widely traded within Africa and beyond due to its several useful applications. This study examined effects of simulated laboratory/domestic heat treatments on quality of the commodity obtained from a cross section of Nigerian markets. Physicochemical and microbiological qualities of NSB samples procured from four selected  markets located across three Nigerian states were evaluated by standard methods before and after graduated thermal stress treatments from 50 through 120 °C over 5, 15, or 30 min durations, respectively, and filtration at 60 °C. Mean physicochemical quality values of NSB samples determined, namely: specific gravity at 29 °C (0.90-0.94); softening, melting temperatures (33-36, 36-39 °C; respectively); acid, iodine, and saponification values (10.5- 29.3, 46.4-59.1, 110-470; respectively), were not adversely or significantly altered by the thermal treatment types and stresses. Whereas all untreated NSB samples demonstrated microbial contamination (total viable counts: 3 6 10 -10 cfu/g) with Pseudomonas, Klebsiella, Staphylococcus, Bacillus, Aspergillus, or Candida species, the graduated heat treatments produced varied sanitizing effects. Higher temperatures (100, 120 °C) gave greater and more rapid cleansing action than the lower temperatures (50, 75 °C), both intensity-ranges being aided by length of holding time. Hot filtration eliminated all the NSB contaminants. In conclusion, while untreated NSB is found grossly contaminated by microbes, unhygienic and unsafe for human use, this study has demonstrated efficient contaminants-cleansing action of heat treatments (³100 °C × ³ 30 min) on NSB, and the total sanitizing effect of hot filtration process. Key words: Natural shea butter, Physicochemical quality, Microbiological quality, Heat treatment, Hot filtration.

scholarly journals Hummingbird-Leaves-Reared Black Soldier Fly Prepupae: Assessment of Nutritional and Heavy Metal Compositions

Biology ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 274
Author(s):  
Giva Kuppusamy ◽  
Chee Kei Kong ◽  
Ganeswaran Chandra Segaran ◽  
Eliyarajan Tarmalingam ◽  
Max Herriman ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Dry Matter ◽  
Animal Feed ◽  
Short Chain Fatty Acids ◽  
Nutritional Content ◽  
Black Soldier Fly ◽  
Sesbania Grandiflora ◽  
Fold Reduction ◽  
Matter Basis

Black soldier fly (BSF) larva is an attractive animal feed replacer due to its noticeable nutritional content. However, the conventional rearing method often resulted in BSF with undesirably high heavy metal residues that are harmful to animals. In this work, putrefied Sesbania grandiflora (S. Grandiflora) leaves were employed as feed to rear BSF larvae. The resultant BSF prepupae were found to contain 43.5% protein and 16.7% fat, reflecting a comparable protein content and a 2-fold reduction in crude fat than those reared using conventional kitchen waste. Moreover, high quantities of arginine (25.4 g/kg dry matter basis (DM)), carnitine (32.9 g/kg DM), and short-chain fatty acids, including lauric (40.00%), palmitic (19.20%), and oleic (12.10%) acids, have also been noticed in the BSF prepupae. Furthermore, the BSF larvae have been recorded with 0.185 mg/kg chromium, 0.380 mg/kg selenium, and mercury below the detection limit, which is far lower than those reared using conventional kitchen and agricultural wastes (≈1.7 mg/kg chromium, 1.2 mg/kg selenium, and 0.2 mg/kg mercury). Overall, the study shows that the nutritional quality of BSF prepupae is extensively improved when using S. Grandiflora as their feed. The resultant BSF prepupae may serve as an alternative feed for animal rearing.

scholarly journals The effect of non-thermal plasma on the lipid oxidation and microbiological quality of sushi

2018 ◽  
Vol 45 ◽  
pp. 412-417 ◽  
Author(s):  
Piotr Kulawik ◽  
Carlos Alvarez ◽  
Patrick J. Cullen ◽  
Ramon Aznar-Roca ◽  
Anne Maria Mullen ◽  
...  
Keyword(s):  
Lipid Oxidation ◽  
Thermal Plasma ◽  
Microbiological Quality ◽  
Non Thermal Plasma

Changes in chemical and microbiological quality of semi-processed black soldier fly (Hermetia illucens L.) larval meal during storage

2020 ◽  
Vol 6 (4) ◽  
pp. 417-428
Author(s):  
E. Kamau ◽  
C. Mutungi ◽  
J. Kinyuru ◽  
S. Imathiu ◽  
H. Affognon ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Microbiological Quality ◽  
Colour Change ◽  
Salmonella Spp ◽  
Black Soldier Fly ◽  
Environment Temperature ◽  
Microbiological Parameters ◽  
Food And Feed ◽  
Processing And Storage

Edible insects are receiving attention as a protein source in the food and feed sector. However, successful commercialisation requires mass production matched with appropriate processing and storage techniques. The quality of dried and pulverised black soldier fly larvae stored in woven polypropylene (PP) sacks, polyethylene (PE) bags and plastic containers with screw lid (PL) in ambient and refrigerated environments was monitored over six months. Chemical indicators (oxidation, fatty acid profile), microbiological parameters (total viable counts, yeast and moulds, Enterobacteriaceae, presumptive coliforms, Salmonella) and colour change were examined. Temperature and relative humidity of the storage environments were monitored. In the ambient environment (temperature: 23.6±2.7 °C; relative humidity: 57.6±7.0%), chemical deterioration progressed 1.5 and 1.2 times faster in PP and PE, respectively, compared to PL. Refrigeration (temperature: 5.4±1.1 °C; relative humidity: 97±5.7%) exacerbated spoilage in the PP due to permeation of moisture through the woven strands, but slowed chemical deterioration by factors of 3.3 (PL) and 2.8 (PE). Likewise, based on the average counts of Enterobacteriaceae and yeast and moulds, microbiological deterioration progressed 2.1 and 1.4 times faster in the PP and PE, respectively, while refrigeration retarded build-up of microbial loads by factors of 1.3-9.6. The presence of Salmonella spp. in the experimental product indicates that due attention must be given to adequacy of processing and handling procedures for dried black soldier fly meal.

scholarly journals Physicochemical composition, lipid oxidation, and microbiological quality of ram mortadella supplemented with Smallanthus sonchifolius meal

2020 ◽  
Vol 8 (11) ◽  
pp. 5953-5961
Author(s):  
Alexandre Cristiano Santos Junior ◽  
Rodrigo Fortunato de Oliveira ◽  
Fabio da Costa Henry ◽  
Jonhny de Azevedo Maia Junior ◽  
Monique Moreira Moulin ◽  
...  
Keyword(s):  
Lipid Oxidation ◽  
Microbiological Quality ◽  
Physicochemical Composition ◽  
Smallanthus Sonchifolius

scholarly journals Use of Black Soldier Fly Larvae for Food Waste Treatment and Energy Production in Asian Countries: A Review

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 161
Author(s):  
Chul-Hwan Kim ◽  
JunHee Ryu ◽  
Jongkeun Lee ◽  
Kwanyoung Ko ◽  
Ji-yeon Lee ◽  
...  
Keyword(s):  
Food Waste ◽  
Organic Waste ◽  
Waste Treatment ◽  
Animal Feed ◽  
Asian Countries ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Culture Techniques ◽  
Environmentally Safe ◽  
Hermetia Illucens Larvae

Food waste accounts for a substantial portion of the organic waste generated at an increasing rate worldwide. Organic waste, including food waste, is largely subjected to landfill disposal, incineration, and anaerobic digestion; however, more sustainable methods are needed for treating it. Treatment of organic waste using black soldier fly (Hermetia illucens) larvae is an environmentally safe and cost-efficient method that has been attracting increasing attention worldwide. Black soldier fly decomposes various types of organic waste and converts them into high-value biomasses such as oils and proteins. This review introduces the trends in research related to the treatment of organic waste by black soldier fly (Hermetia illucens) larvae (BSFL) and their bioconversion efficiencies in Asian countries. Perspectives on the growth of BSFL during waste treatment operation and optimal rearing conditions are provided. The trends in studies related to the application of BSFL as biofuel and animal feed are also discussed. Such use of BSFL would be beneficial in Asia, especially in countries where the technology for processing organic waste is not readily available. This review may provide further directions of investigations including culture techniques for industrial scale applications of BSFL in food waste treatment and resource production in Asian countries.

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