Factors affecting consumers’ evaluation of food derived from animals fed insect meal: A systematic review

Data availability: Data will be made available on request.Supplementary data are available online at https://www.sciencedirect.com/science/article/pii/S0924224423001620?via%3Dihub#coi0010:~:text=Appendix%20A.-,Supplementary%20data,-Data%20availability .Copyright © 2023 The Authors. . Background: Research in recent years has shown there is high potential for various insect species to converting organic substrates into high-quality feedstuffs. Insect-derived meal is increasingly being used to replace conventional feedstuffs such as soybean and fishmeal in animal diets, due to its high protein and essential amino acid content. However, research on consumer acceptance of foods derived from animals produced using insect-based meal is fragmented. Scope and approach: A systematic literature review was carried out in Scopus, Web of Science, AgEcon, and Google Scholar, with a total of 28 articles meeting the selection criteria. Papers were reviewed to identify factors affecting consumer acceptance of insect-based feed. Key Findings and Conclusions: Overall, the review indicated that insects are more acceptable to consumers as an animal feedstuff than as human food. The most important factors influencing consumer evaluation of insect-based feed included risk perceptions, knowledge and heuristic cues. Ethical and environmental concerns also played a role in the decision-making process, but their effect on consumer acceptance of using insects in animal feed was less important. Food neophobia, disgust and uncertainties about safety and health, mainly deriving from lack of knowledge on the part of consumers, emerged as critical barriers to acceptance of insects in animal feed. Greater familiarity with the technology used for the production of insect meals could alleviate disgust and even lessen the impact of neophobia, although affective emotional reactions are unlikely to be changed by awareness and provision of information alone. Technological issues (including substrates and insect species) as well as price changes in the resulting animal-based foods are relevant factors that warrant further research in relation to consumer acceptance

The consensus rye microsatellite map with EST-SSRs transferred from wheat

Microsatellite (SSR) markers with known precise intrachromosomal locations are widely used for mapping genes in rye and for the investigation of wheat-rye translocation lines and triticale highly demanded for mapping economically important genes and QTL-analysis. One of the sources of novel SSR markers in rye are microsatellites transferable from the wheat genome. Broadening the list of available SSRs in rye mapped to chromosomes is still needed, since some rye chromosome maps still have just a few microsatellite loci mapped. The goal of the current study was to integrate wheat EST-SSRs into the existing rye genetic maps and to construct a consensus rye microsatellite map. Four rye mapping populations (P87/P105, N6/N2, N7/N2 and N7/N6) were tested with CFE (EST-SSRs) primers. A total of 23 Xcfe loci were mapped on rye chromosomes: Xcfe023, -136 and -266 on chromosome 1R, Xcfe006, -067, -175 and -187 on 2R, Xcfe029 and -282 on 3R, Xcfe004, -100, -152, -224 and -260 on 4R, Xcfe037, -208 and -270 on 5R, Xcfe124, -159 and -277 on 6R, Xcfe010, -143 and -228 on 7R. With the exception of Xcfe159 and Xcfe224, all the Xcfe loci mapped were found in orthologous positions considering multiple evolutionary translocations in the rye genome relative to those of common wheat. The consensus map was constructed using mapping data from the four bi-parental populations. It contains a total of 123 microsatellites, 12 SNPs, 118 RFLPs and 2 isozyme loci

Are conductance plateaus independent events in atomic point contact measurements ? A statistical approach

Room temperature conductance-elongation curves of gold atomic wires are measured using a Scanning Tunnelling Microscope Break Junction technique. Landauer's conductance plateaus are individually identified and statistically analysed. Both the probabilities to observe, and the lengths of the two last plateaus (at conductance values close to 2e2/h and 4e2/h) are studied. All results converge to show that the occurrence of these two conductance plateaus on a conductance-elongation curve are statistically independent events.Comment: 8 pages, 5 figures. Accepted for publication in Nanotechnolog

Bayesian Wavelet Shrinkage of the Haar-Fisz Transformed Wavelet Periodogram.

It is increasingly being realised that many real world time series are not stationary and exhibit evolving second-order autocovariance or spectral structure. This article introduces a Bayesian approach for modelling the evolving wavelet spectrum of a locally stationary wavelet time series. Our new method works by combining the advantages of a Haar-Fisz transformed spectrum with a simple, but powerful, Bayesian wavelet shrinkage method. Our new method produces excellent and stable spectral estimates and this is demonstrated via simulated data and on differenced infant electrocardiogram data. A major additional benefit of the Bayesian paradigm is that we obtain rigorous and useful credible intervals of the evolving spectral structure. We show how the Bayesian credible intervals provide extra insight into the infant electrocardiogram data

Maternal plasma n-3 and n-6 polyunsaturated fatty acid concentrations during pregnancy and subcutaneous fat mass in infancy

OBJECTIVE:The associations of maternal plasma n-3 and n-6 polyunsaturated fatty acid (PUFA) concentrations during pregnancy with infant subcutaneous fat were examined. METHODS:In a population-based prospective cohort study among 904 mothers and their infants, maternal plasma n-3 and n-6 PUFA concentrations were measured at midpregnancy. Body mass index, total subcutaneous fat, and central-to-total subcutaneous fat ratio were calculated at 1.5, 6, and 24 months. RESULTS:Maternal n-3 PUFA levels were not consistently associated with infant body mass index or total subcutaneous fat. Higher maternal total n-3 PUFA levels, and specifically eicosapentaenoic acid, docosapentaenoic acid, and docosahexaenoic acid, were associated with higher central-to-total subcutaneous fat ratio at 1.5 months, whereas higher maternal total n-3 PUFA levels were associated with lower central-to-total subcutaneous fat ratio at 6 months (all P values < 0.05). These associations were not present at 24 months. Maternal n-6 PUFA levels were not consistently associated with infant subcutaneous fat. A higher n-6/n-3 ratio was associated with lower central-to-total subcutaneous fat ratio at 1.5 months only (P value < 0.05). CONCLUSIONS:Maternal n-3 PUFA levels during pregnancy may have transient effects on infant subcutaneous fat. Further studies are needed to assess the effects of maternal PUFA concentrations on fat mass development during early infancy