Publications by authors named "Chrysantus M Tanga"

Aquaculture plays a critical role in global food security, with Nile tilapia () recognized for its adaptability and robust growth. However, traditional feeds, heavily reliant on fishmeal (FM) and soybean meal, face economic and environmental challenges. In response, black soldier fly larvae meal (BSFLM) has emerged as a promising, nutrient-dense alternative.

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Urinary schistosomiasis is caused by the blood fluke , which is predominantly found in Africa. The freshwater snail is its main intermediate host. The species that make up the group are genetically complex, and their taxonomic status remains controversial.

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Organic fertilizers have been identified as a sustainable agricultural practice that can enhance productivity and reduce environmental impact. Recently, the European Union defined and accepted insect frass as an innovative and emerging organic fertilizer. In the wider domain of organic fertilizers, mathematical and computational models have been developed to optimize their production and application conditions.

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Although, the impact of mulberry leaves on mortality of Bombyx mori [silkworm] and cocooning rates has been investigated, limited research has exploited the influence on the quality of B. mori pupae. This study evaluated the effects of four mulberry cultivars (Ichinose, Noi-EX-Thailand, Ex-Thika and Victory1) on the nutritional quality of B.

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Microbial infections and excessive reactive oxygen species are the primary contributors to delays in wound healing with Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus as the common wound infection causing bacteria. In fact, wound management has become more challenging since most of these microbes have developed resistance against commonly used conventional antibiotics thus making it necessary to develop natural products with both antibacterial and antioxidant activities. Increasing attention has been paid to silk sericin in the last decade, with limited research focus in Africa.

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Globally, despite the commercial and cultural importance of edible caterpillars ( and ), comprehensive information on their dietary and therapeutic benefits has not been fully explored. The study was aimed at evaluating the nutritional composition and bioactive compounds profile of two important edible caterpillars ( and ) in Africa. Our results demonstrated that and are capable of amplifying host plant protein (17 %) by 4.

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Bush bean ( L.) production is undermined by soil degradation and low biological nitrogen fixation (BNF) capacity. This study evaluated the effect of black soldier fly frass fertilizer (BSFFF) on bush bean growth, yield, nutrient uptake, BNF, and profitability, in comparison with commercial organic fertilizer (Phymyx, Phytomedia International Ltd.

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Plastic waste has recently become a major global environmental concern and one of the biggest challenges has been seeking for alternative management options. Several studies have revealed the potential of several coleopteran species to degrade plastics, and this is the first research paper on plastic-degradation potential by lesser mealworms from Africa. This study evaluated the whole mitogenomic profile of the lesser mealworm to further identify the insect.

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Article Synopsis
  • - The study investigates the gut microbiota of two edible wood-boring beetle larvae,
  • Titocerus jaspideus
  • and
  • Passalus punctiger
  • , highlighting the significant presence of Firmicutes, Bacteroidota, and Proteobacteria within their guts.
  • Lactococcus lactis
  • was identified as the dominant prokaryote in
  • T. jaspideus
  • , and
  • Scheffersomyeces
  • was noted as the core eukaryote, suggesting these microbes play important roles in the beetles' gut health and metabolism.
  • - The findings indicate that these gut microbes, particularly
  • L. lactis
  • , possess probiotic properties that could benefit fermentation processes in food products
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The prevailing global market demands locally produced, sustainable oils for biomedical applications. This study focused on evaluating the quality of cricket-derived oils and meals from Hugel, Tanga, and De Geer common delicacy in Africa, following standard methods for physicochemical properties, fatty acid composition, and phytochemicals (oxalates, phytates, tannins, and polyphenols). The cricket oils physicochemical properties aligned with Codex Alimentarius standards for edible oils, including low solidification temperature (< 2 °C), a high refractive index (1.

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Although edible rhinoceros beetle ( sp. larvae are popularly consumed in many countries worldwide, they are prepared using different methods such as boiling, roasting, toasting, and deep-frying, whose effect on nutritional value and microbial safety is scarcely known. Here we investigated the effect of these methods on the nutritional value and microbial safety of sp.

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Exploration of edible insects as sustainable alternative nutrient-dense sources such as nutraceuticals have attracted more and more global attention recently. However, research on wood borer beetles have largely been overlooked. This study assessed the entomo-chemical properties of Titoceres jaspideus (Cerambycidae) and Passalus punctiger (Passalidae), which are widely consumed in many African countries, including Kenya.

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Crickets () produce sounds as a natural means to communicate and convey various behaviors and activities, including mating, feeding, aggression, distress, and more. These vocalizations are intricately linked to prevailing environmental conditions such as temperature and humidity. By accurately monitoring, identifying, and appropriately addressing these behaviors and activities, the farming and production of crickets can be enhanced.

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Termites are widely distributed globally and serve as a valuable food source in many countries. However, information on the myriad nutritional benefits of processed termite products in African markets remain largely unexploited. This study evaluated the phytochemicals, fatty acids, amino acids, minerals, vitamins and proximate composition of the edible winged termites (Macrotermes spp.

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Article Synopsis
  • Gryllus bimaculatus, a cricket species, is recognized as a valuable source of nutrition for food and feed, but its response to temperature for effective mass production is not well-studied.
  • The research tested G. bimaculatus at temperatures from 20°C to 40°C, finding optimal life cycle completion and growth at around 32°C, with the highest population growth rate at 35°C.
  • Results provide crucial insights for farmers by revealing that G. bimaculatus can thrive in temperatures between 20°C and 37°C, allowing for better management and sustainability in cricket farming globally.
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Natural products hold immense potential for drug discovery, yet many remain unexplored in vast libraries and databases. In an attempt to fill this gap and meet the growing demand for effective drugs, this study delves into the promising world of -kaurane diterpenoids, a class of natural products with huge therapeutic potential. With a dataset of 570 -kaurane diterpenoids obtained from the literature, we conducted an in silico analysis, evaluating their physicochemical, pharmacokinetic, and toxicological properties with a focus on their therapeutic implications.

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Article Synopsis
  • Root-knot nematodes are major pests that can cause total yield loss in food crops, and traditional nematicides are expensive and environmentally harmful.
  • This study evaluates the effectiveness of chitin-fortified black soldier fly frass fertilizer extracts (chFE) in controlling nematodes and improving spinach growth compared to a commercial nematicide.
  • Results indicate that chFE significantly reduces nematode activity and enhances spinach biomass, making it a viable, sustainable alternative for managing plant-parasitic nematodes and boosting crop yields.
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Article Synopsis
  • Potato production struggles with low soil fertility and nematode issues, making conventional fertilizers and nematicides expensive and environmentally harmful.
  • This study investigated the use of chitin-fortified black soldier fly-composted organic fertilizer (BSFCOF) to improve potato yield and reduce potato cyst nematodes (PCN).
  • Results showed that BSFCOF with 5% chitin significantly boosted potato growth, increased tuber yield by up to 362%, and effectively reduced PCN populations, while enhancing overall soil fertility.
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The utilization of yellow mealworm, Tenebrio molitor (Linnaeus, Coleoptera: Tenebrionidae), for food and feed is gaining interest globally. However, its production is hindered by expensive commercial diets. This study assessed mealworm growth performance, survival, bioconversion, and nutritional composition when fed on wheat bran (WB) with different inclusion levels (25%, 50%, 75%, and 100%) of Irish potato waste (PW).

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Globally, antibiotics are facing fierce resistance from multidrug-resistant bacterial strains. There is an urgent need for eco-friendly alternatives. Though insects are important targets for antimicrobial peptides, it has received limited research attention.

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Article Synopsis
  • * Results showed that layer hens and chicks fed diets with 75% HILM experienced significantly higher weight gains, better feed efficiency, and increased egg production compared to those on lower HILM diets.
  • * Economic analysis revealed that feeding 75% HILM resulted in higher profit margins and a notable return on investment, suggesting it as a viable alternative for improving poultry production profitability.
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Cabbage and Onion production in sub-Saharan Africa face numerous pest constraints that needs to be overcome to feed the rapidly growing population. This study aimed to establish the occurrence, incidence, and severity of soil-dwelling pests of cabbage and onions, and current management practices in five Counties of Kenya. Our findings revealed that most farmers grew hybrid vegetables on a small scale, which were highly dominated by various pest species (Delia platura, Maladera sp.

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Wheat bread is among stable foods that are nutritionally imbalanced, thus enrichment is crucial. We evaluated the nutritional impact of high-valued wheat bread enriched with varying levels of meat powder from hen fed diet with insect ()-based meal. Crude protein and ash in bread increased with increasing inclusion of meat powder.

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Edible insects are gaining traction worldwide for research and development. This review synthesizes a large and well-established body of research literature on the high nutritional value and variety of pharmacological properties of edible insects. Positive benefits of insect-derived products include immune enhancement; gastrointestinal protection; antitumor, antioxidant, and anti-inflammatory capacities; antibacterial activities; blood lipid and glucose regulation; lowering of blood pressure; and decreased risk of cardiovascular diseases.

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Disgust and neophobia elicited by whole insect products, has necessitated the need to mask insect-based food products. The physico-chemical parameters, sensory acceptance, and willingness to pay (WTP) for wheat biscuits supplemented with cricket powder was evaluated. The biscuits' color intensity correlated with the cricket inclusion levels.

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