Sugar-fermenting yeast as an organic source of carbon dioxide to attract the malaria mosquito Anopheles gambiae s.s.

Smallegange, Renate C.; Schmied, Wolfgang H.; Roey, Karel J van; Verhulst, Niels O.; Spitzen, Jeroen; Mukabana, Wolfgang R; Takken, Willem

doi:10.1186/1475-2875-9-s2-o29

Cited by 5 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the present experiment two traps were used. In one trap carbon dioxide was generated using a sugar and yeast mixture in 2 L of water in a 5 L plastic bottle (Smallegange et al, 2010) and in the other carbon dioxide was not used. The traps were suspended 70 cm above the ground using metal tripods, with the funnel opening set 30cm above the ground (Fig.…”

Section: Suna Trapmentioning

confidence: 99%

Novel sampling methods for monitoring Anopheles arabiensis from Eritrea

Charlwood

Andegiorgish

Asfaha

et al. 2021

PeerJ

View full text Add to dashboard Cite

Background Studies comparing novel collection methods for host seeking and resting mosquitoes A. arabiensis were undertaken in a village in Eritrea. Techniques included an odor baited trap, a novel tent-trap, human landing collection and three methods of resting collection. A technique for the collection of mosquitoes exiting vegetation is also described. Pre-gravid rates were determined by dissection of host seeking insects and post-prandial egg development among insects collected resting. Results Overall 5,382 host-seeking, 2,296 resting and 357 A. arabiensis exiting vegetation were collected. The Furvela tent-trap was the most efficient, risk-free method for the collection of outdoor host-seeking insects, whilst the Suna trap was the least effective method. Mechanical aspirators (the CDC backpack or the Prokopack aspirator) were superior to manual aspiration in a dark shelter but there was no advantage over manual aspiration in a well-lit one. An estimated two-thirds of newly-emerged mosquitoes went through a pre-gravid phase, feeding twice before producing eggs. Mosquitoes completed gonotrophic development in a dark shelter but left a well-lit shelter soon after feeding. One blood-fed female marked in the village was recaptured 2 days after release exiting vegetation close to the oviposition site and another, shortly after oviposition, attempting to feed on a human host 3 days after release. Exit rates of males from vegetation peaked 3 min after the initial male had left. Unfed and gravid females exited approximately 6 min after the first males. Conclusions Furvela tent-traps are suitable for the collection of outdoor biting A. arabiensis in Eritrea whilst the Prokopack sampler is the method of choice for the collection of resting insects. Constructing well-lit, rather than dark, animal shelters, may encourage otherwise endophilic mosquitoes to leave and so reduce their survival and hence their vectorial capacity.

show abstract

Section: Suna Trapmentioning

confidence: 99%

Novel sampling methods for monitoring Anopheles arabiensis from Eritrea

Charlwood

Andegiorgish

Asfaha

et al. 2021

PeerJ

View full text Add to dashboard Cite

show abstract

“…Therefore, the 1 h-0.2% (227.0 s) and 3 h-0.2% dried noodles (223.5 s) showed less cooking time compared to unfermented noodles (262.50 s). In addition, thicker noodles needed more time to be cooked to their optimal point [37]. Therefore, the greater thickness due to the increase of yeast addition increased the cooking time.…”

Section: Cooking Propertiesmentioning

confidence: 99%

Regulation of Structure and Quality of Dried Noodles by Liquid Pre-Fermentation

Xiong

Liu

Zheng

2021

Foods

View full text Add to dashboard Cite

Liquid pre-fermentation technology was innovatively applied to the development of dried fermented noodles. The effects of fermentation time (1, 3 and 6 h) and yeast addition (0.2, 0.5 and 1.0 g/100 g of flour) on the quality, microstructure and flavor of dried noodles were also investigated in this study. Conspicuous porous structures and greater thickness of dried noodles were found when the fermentation time was ≤ 3 h and the yeast addition was ≥ 0.5 g/100 g of flour, which contributed to the increase in the breaking strength, cooking time and water absorption. However, when the fermentation time increased to 6 h, finer microporous structures, little change related to thickness and richer flavor levels were detected. Additionally, the total titratable acidity of dried fermented noodles was increased to 3.38–4.43 mL compared with the unfermented noodles (2.15 mL). Weaker gluten network structures caused by long-time fermentation and acidic environment led to lower hardness, chewiness, tensile force and tensile distance of cooked fermented noodles.

show abstract

“…Using of organic wastes were universally used for massive algal biomass production and such technique ultimately reduces the production costs [29]. Bagasse as well as organic wastes not only rich in carbon and other nutrients, but it is also rich in other growth promoters including vitamins and phytohormones [9].…”

Section: Bagasse Chemical Compositionmentioning

confidence: 99%

“…Besides, the osmo regulator effect, chelating effect and buffering action against the rising of media reaction to alkaline side were considered as the main [5]. Bagasse extract seems to be rich in simple sugars mainly sucrose which are easily utilized by microorganisms as a carbon source [9].…”

Section: Bagasse Chemical Compositionmentioning

confidence: 99%

See 1 more Smart Citation

Application of bagasse extract in economic Nannochloropsisoculata mass production

et al. 2020

View full text Add to dashboard Cite

Algae were considered as an alternative source of food and a lot of biologically active ingredient. Beside, algae nutrition seems to be the most limiting factor concerning proper growth and economy cost. The main figure in this respect is carbon nutrition. The aim of the current work was to use bagasse for carbon nutrition of Nannochloropsis alga beside the selection of the proper concentration. Growth was performed using F2 growth medium for inoculum preparation and sub-culturing, while artificial growth medium was made and used to be mass culture of alga. The investigated parameters were dry weight, total chlorophyll and carotenoids. Results showed that a high nutritional composition of bagasse extract as an alternative source of organic carbon (89.9% of total cell carbon)and other nutrients N, P and K .(0.035 ppm, 7.0 ppm and 51 ppm, respectively) especially when integrated with original growth medium (F2) and bagasse extract led to extra growth enhancement. Low and medium concentrations of bagasse in cultures free growth medium led to decrease the chlorophyll content and the maximum chlorophyll content (0.54g.l -1 ). It was obtained by cultures grown with full F2 growth medium enriched by 10% of bagasse extract. By such treatment, carotene possessed the lowest (0.14g.l -1 ) outdoor zigzag shape photobioreactor led to the highest volumetric algal biomass production compare to indoor systems .Unit specification markedly affected growth characteristics and yield both of Nannochloropsisoculata in dry weight and oil content. Chemical composition revealed the relatively high content of carbohydrates (26.6%) and oils (11.9%) on the expense of protein content (32.8%) and the maximum figure of ash content (2%) goes back to sodium ions.

show abstract

Sugar-fermenting yeast as an organic source of carbon dioxide to attract the malaria mosquito Anopheles gambiae s.s.

Cited by 5 publications

References 0 publications

Novel sampling methods for monitoring Anopheles arabiensis from Eritrea

Novel sampling methods for monitoring Anopheles arabiensis from Eritrea

Regulation of Structure and Quality of Dried Noodles by Liquid Pre-Fermentation

Application of bagasse extract in economic Nannochloropsisoculata mass production

Contact Info

Product

Resources

About