The digestive system of the adult Hermetia illucens (Diptera: Stratiomyidae): morphological features and functional properties

2019 ◽  
Vol 378 (2) ◽  
pp. 221-238 ◽  
Author(s):  
Daniele Bruno ◽  
Marco Bonelli ◽  
Agustin G. Cadamuro ◽  
Marcella Reguzzoni ◽  
Annalisa Grimaldi ◽  
...  
Keyword(s):  
Functional Properties ◽  
Digestive System ◽  
Morphological Features ◽  
Hermetia Illucens

scholarly journals Entangling the Enemy: Ecological, Systematic and Medical Implications of Dermestid Beetle Hastisetae

Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 436
Author(s):  
Enrico Ruzzier ◽  
Marcin Kadej ◽  
Andrea Di Giulio ◽  
Andrea Battisti
Keyword(s):  
Defensive Behavior ◽  
Digestive System ◽  
Living Environment ◽  
Morphological Features ◽  
Allergic Reactions ◽  
Stored Products ◽  
Genus Level ◽  
Basic Concepts ◽  
Source Of Information ◽  
Fine Morphology

Hastisetae are modified setae typical of Dermestidae Megatominae and are a primary defensive tool of both larvae and pupae against invertebrates and possibly vertebrates. Given their unique morphological features, hastisetae have recently been suggested as an additional character useful for larvae identification and possible source of information to clarify the systematics of Megatominae. Hastisetae are also recognized as important contaminants of stored products, work and living environment; in particular, the exposure to hastisetae seems to cause allergic reactions and the insurgence of skin rashes, asthma, conjunctivitis, and digestive system inflammation in humans. Starting from these basic concepts, the present paper provides a detailed description of the hastisetae of some Megatominae. Fine morphology of external and internal microstructures of the hastisetae is shown and compared at the genus level. The insertion on integument, the pedicel, the shaft, and the apical head are illustrated in detail, and the first observations of active defensive behavior based on hastisetae are recorded and presented. Possible implications to the systematics of skin beetles are proposed based on the results of the study.

Resource-efficient and eco-friendly model for fruit processing industry waste valorisation using black soldier fly (Hermetia illucens) larvae under tropical conditions

2021 ◽  
pp. 1-14
Author(s):  
K.S.L. Perera ◽  
C.J. Liyanage ◽  
H.R.N. Jinadasa ◽  
P.M. Korale Gedara ◽  
W.A.I.P. Karunaratne
Keyword(s):  
Functional Properties ◽  
Cost Benefit Analysis ◽  
Binding Capacity ◽  
Cost Benefit ◽  
Benefit Analysis ◽  
Processing Industry ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Tropical Conditions ◽  
Fruit Processing

A pilot facility was developed to evaluate the digestion efficiency of mixed fruit peel waste by black soldier fly (Hermetia illucens (L.) (Diptera: Stratiomyidae); BSF) larvae in Sri Lanka. Larval biomass was characterised by proximate analysis and the techno-functional properties of BSF larvae flour protein were determined. A cost-benefit analysis was conducted to assess the feasibility of operating an onsite BSF digestion facility for a medium scale fruit juice manufacturer. The observed optimum feeding rate was 1.5 g/larva. A bioconversion rate of 15.41 was achieved. The waste reduction index was 1.73. The feed conversion rate was 3.85. The efficiency of conversion of digested food was 0.29. The highest wet and dry weight reductions were 61.72 and 55.10% respectively, indicating very efficient digestion. The crude protein content of BSF larvae was 40.87% while the crude fat content was 26.67%, proving it is a potential protein source as a feed ingredient. The protein fraction also had highly desirable techno-functional properties (water-binding capacity 3.00 g/gDM, oil binding capacity 5.22 g/gDM, emulsifying capacity 36.00 ml/g, foaming capacity 0.48, and foaming stability 0.15). The waste is currently being dumped in a non-sustainable manner at US$ 10.00 per one metric ton. The cost-benefit analysis showed a net benefit of US$ 3,963.76 per month from this valorisation, suggesting it is a highly viable, eco-friendly option for processing fruit processing industry or similar organic waste under tropical conditions in middle income countries.

MORPHOLOGICAL FEATURES AND FUNCTIONAL PROPERTIES OF THE UDDER OF COWS OF THE MAIN DAIRY BREEDS GROWN IN VORONEZH OBLAST

2017 ◽  
Vol 4 (55) ◽  
pp. 89-94
Author(s):  
Lyubov G. Khromova ◽  
◽  
Natalia V. Bailova ◽  
Ekaterina A. Pilyugina ◽  
Irina V. Musenko ◽  
...  
Keyword(s):  
Functional Properties ◽  
Morphological Features ◽  
Voronezh Oblast

The Nematodes That Cause Anisakiasis1,2

1975 ◽  
Vol 38 (12) ◽  
pp. 774-782 ◽  
Author(s):  
BETTY JUNE MYERS
Keyword(s):  
Digestive Tract ◽  
Cross Sections ◽  
Excretory Pore ◽  
Digestive System ◽  
Diagnostic Value ◽  
Morphological Features ◽  
Numerous Species ◽  
Larval Stages ◽  
Tissue Sections ◽  
Fish Hosts

Anisakine nematodes responsible for human anisakiasis have been recognized in fish hosts for over a decade. They are larval stages, relatively simple in form, and lack many morphological features used for identification of the adults (e.g., cephalic structures, spicules, etc.). However, these immature helminths can be sorted into larval types on the basis of the anterior digestive tract formation and the position of the excretory pore. Problems in identfying larvae, even as to type, are often encountered in tissue sections that may not show those anterior regions containing features of the digestive system which are diagnostic for type sorting. Hence, it is necessary to reconsider the diagnostic value of lateral chords, muscle cells, etc., that are visible in all cross-sections. Fish which are eaten by the human consumer also contain larval stages of other roundworms (nematodes) than those responsible for human anisakiasis, as well as numerous species of adult nematodes.

scholarly journals Maggot (Hermetia illunces) sebagai pakan alternatif pada budidaya ikan

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
Jeffrie F. Mokolensang ◽  
Mutiara G. V. Hariawan ◽  
Lusia Manu
Keyword(s):  
Nutritional Value ◽  
Digestive System ◽  
Fish Farming ◽  
High Protein ◽  
Fish Feed ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae ◽  
Alternative Feeds

In increasing fish farming production, it is very dependent on the availability of fish feed which has recently been expensive. To overcome this, was necessary to find alternative feeds that have nutritional value according to the needs of cultivated organisms. Maggot (Hermetia illucens Linn.) is a black soldier fly larvae that has a chewy texture, high protein and has the ability to secrete natural enzymes that help improve the digestive system of fish. . The aimed of this research was to find out the amount of maggot (H. illucens Linn.) production in several cultivation media with different treatments. The  results of the study found that it took up to 2 weeks to produce maggot that had ready to be used as feed. Maggot had the potential to be cultivated as an alternative to fish feed.

Quaternary structure of Limulus polyphemus hemocyanin

1978 ◽  
Vol 36 (2) ◽  
pp. 176-177
Author(s):  
T. Wichertjes ◽  
E.J. Kwak ◽  
E.F.J. Van Bruggen
Keyword(s):  
Electron Microscopy ◽  
Functional Properties ◽  
Horseshoe Crab ◽  
Temperature Jump ◽  
Quaternary Structure ◽  
Crystallographic Analysis ◽  
Limulus Polyphemus ◽  
Oxygen Binding ◽  
X Ray ◽  
Intact Molecule

Hemocyanin of the horseshoe crab (Limulus polyphemus) has been studied in nany ways. Recently the structure, dissociation and reassembly was studied using electron microscopy of negatively stained specimens as the method of investigation. Crystallization of the protein proved to be possible and X-ray crystallographic analysis was started. Also fluorescence properties of the hemocyanin after dialysis against Tris-glycine buffer + 0.01 M EDTA pH 8.9 (so called “stripped” hemocyanin) and its fractions II and V were studied, as well as functional properties of the fractions by NMR. Finally the temperature-jump method was used for assaying the oxygen binding of the dissociating molecule and of preparations of isolated subunits. Nevertheless very little is known about the structure of the intact molecule. Schutter et al. suggested that the molecule possibly consists of two halves, combined in a staggered way, the halves themselves consisting of four subunits arranged in a square.

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