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1.
Foods ; 13(18)2024 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-39335845

RESUMEN

Cashew nuts can contribute to improving intestinal permeability and inflammation as they contain essential nutrients and bioactive compounds, but no clinical trials have evaluated these potential effects. This randomized trial aimed to assess the effects of cashew nuts and their oil on intestinal permeability and inflammatory markers. Sixty-four adults with overweight or obesity were allocated into three groups receiving energy restriction (-500 kcal/day): control (CT, free nuts), cashew nuts (CN, 30 g/day), or cashew nut oil (OL, 30 mL/day). Urine lactulose and mannitol, plasma zonulin and the lipopolysaccharide-binding protein (LBP), plasma interleukins (IL-6, TNF-α, IL-10, IL-1ß, IL-8, and IL-12p70), and C-reactive proteins were analyzed. Energy restriction reduced body fat and other indicators of adiposity without differences between the groups. Only the control group increased LBPs after an 8-week intervention. There were no statistically significant differences found between the groups in terms of intestinal permeability and inflammatory markers. In conclusion, incorporating cashew nuts or cashew nut oil into an energy-restricted 8-week dietary intervention did not change intestinal permeability and inflammatory markers. As studies evaluating cashew nuts on these markers remain scarce, further research is needed, perhaps with a longer study period and a higher concentration of cashew nuts and oil.

2.
Molecules ; 29(17)2024 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-39275016

RESUMEN

The particular properties of graphene oxide (GO) make it a material with great technological potential, so it is of great interest to find renewable and eco-friendly sources to satisfy its future demand sustainably. Recently, agricultural waste has been identified as a potential raw material source for producing carbonaceous materials. This study explores the potential of cashew nut shell (CNS), a typically discarded by-product, as a renewable source for graphene oxide synthesis. Initially, deoiled cashew nut shells (DCNS) were submitted to pyrolysis to produce a carbonaceous material (Py-DCNS), with process optimization conducted through response surface methodology. Optimal conditions were identified as a pyrolysis temperature of 950 °C and a time of 1.8 h, yielding 29.09% Py-DCNS with an estimated purity of 82.55%, which increased to 91.9% post-washing. Using a modified Hummers method, the Py-DCNS was subsequently transformed into graphene oxide (GO-DCNS). Structural and functional analyses were carried out using FTIR spectroscopy, revealing the successful generation of GO-DCNS with characteristic oxygen-containing functional groups. Raman spectroscopy confirmed the formation of defects and layer separations in GO-DCNS compared to Py-DCNS, indicative of effective oxidation. The thermogravimetric analysis demonstrated distinct thermal decomposition stages for GO-DCNS, aligning with the expected behavior for graphene oxide. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) further corroborated the morphological and compositional transformation from DCNS to GO-DCNS, showcasing reduced particle size, increased porosity, and significant oxygen functional groups. The results underscore the viability of cashew nut shells as a sustainable precursor for graphene oxide production, offering an environmentally friendly alternative to conventional methods. This innovative approach addresses the waste management issue associated with cashew nut shells and contributes to developing high-value carbon materials with broad technological applications.

3.
Microbiol Resour Announc ; 13(10): e0044524, 2024 Oct 10.
Artículo en Inglés | MEDLINE | ID: mdl-39248542

RESUMEN

Aspergillus flavus is a soil-borne fungus known for its aflatoxin contamination of agricultural products. Here, we report the draft genome sequences of 16 predicted aflatoxin-producing A. flavus isolated from cashew nuts from coastal Kenya.

4.
Microbiol Resour Announc ; 13(10): e0046024, 2024 Oct 10.
Artículo en Inglés | MEDLINE | ID: mdl-39283092

RESUMEN

Aspergillus aculeatus is a common saprophyte and ubiquitous fungus belonging to section Nigri. They produce diverse secondary metabolites which are important in biological processes and industrial applications. We present the draft genome sequences of two A. aculeatus isolated from cashew nuts from coastal Kenya.

5.
Exp Parasitol ; 266: 108839, 2024 Sep 10.
Artículo en Inglés | MEDLINE | ID: mdl-39265884

RESUMEN

Trichomonas vaginalis is a protist parasite of the urogenital tract, responsible for human trichomoniasis, an infection sexually transmitted that affects approximately 156 million people worldwide. This pathology is more evident in females and can cause miscarriages, premature births, and infertility. The disease can also lead to a greater predisposition to HIV infection and cervical and prostate cancer. Metronidazole (MTZ) is a drug that treats human trichomoniasis. The data from studies involving human subjects are limited regarding MTZ use during pregnancy. In addition to the toxicity of the treatment, some isolates have become resistant to MTZ. Therefore, searching for new compounds active for treating trichomoniasis becomes necessary. In the present study, we report results obtained using new phospholipid analogs. Two cardanol-based compounds designated LDT117 and LDT134 were active against T. vaginalis with an IC50 of 4.58 and 10.24 µM, respectively. These compounds were not toxic to epithelial cells in culture. Scanning electron microscopy observations revealed a rounding of the cells, a shortening of the flagella, and protrusions on the surface of drug-treated cells. Transmission electron microscopy of treated cells revealed alterations in the plasma membrane with formations of blebs, protrusions, depressions, and vacuoles with myelin figures and vacuolization in the cytoplasm after incubation. Furthermore, after treatments with the compounds LDT117 and LDT134, the parasites presented a positive reaction for TUNEL, indicating death by a mechanism like apoptosis. Given the results obtained, further in vivo studies using animal experimental models are necessary to validate that these compounds are effective for treating human trichomoniasis.

6.
Int J Biol Macromol ; 277(Pt 4): 134473, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39111474

RESUMEN

Conducting biopolymer blend nanocomposites of cashew gum (CG) and polypyrrole (PPy), with varying concentrations of copper oxide (CuO) nanoparticles were synthesized through an in-situ polymerization method using water as a sustainable solvent. The formation of blend nanocomposites was characterized using UV-visible (UV-vis) spectroscopy, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). UV spectroscopy revealed a significant reduction in absorption intensity with the addition of CuO, indicating enhanced optical properties. FT-IR and XRD analysis confirmed the successful incorporation of CuO into the CG/PPy blend. FE-SEM images revealed the uniform distribution of nanoparticles throughout the biopolymer blend, particularly in the 7 wt% sample. TGA and DSC results demonstrated a significant enhancement in thermal stability, increasing from 352 °C to 412 °C and a rise in the glass transition temperature from 89 °C to 106 °C in the blend nanocomposites. The dielectric constant, dielectric loss, impedance, Nyquist plot, electrical conductivity, and electric modulus were extensively examined at different temperatures and frequencies. The dielectric constant of the CG/PPy blend increased from 2720 to 92,950 with the addition of 7 wt% CuO, measured at 100 Hz. The improved glass transition temperature, thermal stability, and superior electrical properties imply potential usage of the developed nanocomposite in nanoelectronics and energy storage applications.


Asunto(s)
Anacardium , Cobre , Tecnología Química Verde , Gomas de Plantas , Polímeros , Pirroles , Cobre/química , Pirroles/química , Anacardium/química , Polímeros/química , Gomas de Plantas/química , Tecnología Química Verde/métodos , Nanocompuestos/química , Conductividad Eléctrica , Difracción de Rayos X , Suministros de Energía Eléctrica , Espectroscopía Infrarroja por Transformada de Fourier , Nanopartículas/química
7.
J Immunoassay Immunochem ; : 1-17, 2024 Aug 21.
Artículo en Inglés | MEDLINE | ID: mdl-39169555

RESUMEN

Conventional oral vaccine delivery in poultry is challenging due to vaccine degradation in the gastrointestinal (GI) environment and the need for cold-chain storage. Microencapsulation offers a solution by protecting vaccines from GI degradation and improving stability. Natural polymers like alginate and cashew gum have mucoadhesive properties, making them promising candidates for oral vaccine delivery. This study developed cashew-alginate microbeads and a powdered dose form for oral vaccine delivery in chickens. The microbeads were created using ionotropic gelation, while the powdered form was obtained via freeze-drying. These formulations were characterized for size, shape, and stability using scanning electron microscopy (SEM), light microscopy, X-ray diffraction (XRD), and Energy Dispersive X-ray (EDX). Peak adhesion time (PAT) was determined using chicken intestinal and esophageal tissues, and antigenicity was assessed with in-vitro hemagglutination (HA) and hemagglutination inhibition (HI) assays. The microbeads exhibited a spherical shape with a porous structure, suggesting enhanced antigen accommodation. Hemagglutination Inhibition tests indicated that the experimental vaccine remained effective without cold-chain storage for three months. These findings suggest that cashew-alginate microbeads are promising for oral vaccine delivery in poultry.

9.
Molecules ; 29(16)2024 Aug 17.
Artículo en Inglés | MEDLINE | ID: mdl-39202974

RESUMEN

In this work, silver nanoparticles (AgNPs) were synthesized from cashew nutshell liquid (CNSL) by varying the concentration of silver ions and the pH of the CNSL extract. The synthesized AgNPs were further characterized to study their surface, structural, and morphological properties and tested for the removal of methylene blue (MB) dye. The results of this study showed that depending on the conditions, particles of various sizes, ranging from 1 to 60 nm, and different degrees of stabilization and agglomeration were produced. The concentration of silver ions equal to 3 mM and the pH of the extract of ~4.5 (AgNP3) resulted in the most efficient synthesis, where particles appeared to be highly stabilized and homogeneously distributed on the surface, exhibiting a small average particle size and a narrow particle size distribution (6.7 ± 6.5 nm). Such particles further showed the highest percent removal of MB, where up to 80% removal was recorded within the first 20 min. Higher concentrations of silver ions and higher pH of the extract resulted in substantial particle agglomeration and particles being over-capped by the CNSL biomolecules, respectively, which further negatively affected the ability of particles to remove MB. Finally, the fact that visible light showed no significant effect on the removal of MB, with the average removal rates found to be about the same as in the dark, suggests the strong catalytic nature of AgNPs, which facilitates the electron transfer reactions leading to MB reduction.

10.
Heliyon ; 10(12): e32421, 2024 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-39005915

RESUMEN

This study underlines all the techniques adopted to extract and define the oil that was extracted from cashew kernels and also to figure out if it fits the bill for applications in industrial operations. Using the solvent extraction method, the oil was obtained at different extraction times and temperatures. At the maximum temperature 333 K, the highest yield of the oil (34.7 %) was obtained at the highest extraction time 130 min adhering to first order kinetics. The mass transfer (km) and the regression coefficient (R2) were 0.0115 and 0.9853 respectively. The activation energy (Ea.), the entropy changes (ΔS), the equilibrium constant (K) and the enthalpy change (ΔH) were 59.958 KJmol-1, 228.4 KJmolK-1, 7.54 and 70.29 KJmol-1 respectively. The activation enthalpy (ΔH*), entropy (ΔS*) and Gibbs free energy (ΔG*) were 57.2880 KJmol-1, -0.1617 KJ (molK)-1 and 114.834 KJ mol-1, respectively, favoring an endothermic, irreversible, and spontaneous extraction. The negative Gibbs free energy range of -2.3342 KJ(molK)-1 to -5.7602 KJ(molK)-1 indicated the feasibility of oil extraction from cashew kernels. Also, some major fatty acids compositions that were identified in the oil after characterization were oleic acid (71 %) and linoleic acid (32 %). The oil's bond and potential functional groups were identified using the Fourier Transform Infrared analysis (FTIR) which indicated the presence of O-H, C-H, C-N, C[bond, double bond]O, C-C and = C-H.

11.
Artículo en Inglés | MEDLINE | ID: mdl-38992429

RESUMEN

BACKGROUND: Infant feeding guidelines in Australia changed in 2016 to recommend introducing common allergy-causing foods by age 1 year to prevent food allergy. Although most Australian infants now eat peanut and egg by age 6 months, some still develop food allergy despite the early introduction of allergens. OBJECTIVES: To describe the prevalence of food allergy in a cohort recruited after introducing the nationwide allergy prevention recommendations; identify characteristics of infants who developed allergy despite early introduction of allergens; and estimate the causal effect of modifiable exposures on food allergy prevalence and whether this differed between infants who were introduced to allergens before or after age 6 months. METHODS: We recruited a population-based sample of 12-month-old infants in Melbourne, Australia. Infants had skin prick tests to four foods and parents completed questionnaires. Infants with evidence of sensitization were offered oral food challenges. Prevalence estimates were adjusted using inverse probability weighting. RESULTS: In a cohort of infants (n = 1,420) in which nearly all infants had been introduced to common allergens such as egg, milk, and peanut by age 1 year, the prevalence of food allergy remained high at 11.3% (95% CI, 9.6-13.4). Infants who developed food allergy despite introduction of the allergen by age 6 months were more likely to have Asian-born parents. Early-onset moderate or severe eczema was associated with an increased odds of food allergy irrespective of whether allergens were introduced before or after age 6 months. Among infants who were introduced to peanut at age 6 months or earlier, antibiotic use by age 6 months was associated with an increased odds of peanut allergy (adjusted odds ratio = 6.03; 95% CI, 1.15-31.60). CONCLUSIONS: In a cohort in which early allergen introduction was common, the prevalence of food allergy remained high. Infants who developed food allergy despite introduction of the respective allergen by age 6 months were more likely to have had Asian parents and early-onset eczema. New interventions are needed for infants with a phenotype of food allergy that is not amenable to early allergen introduction.

12.
J Nephrol ; 2024 Jul 27.
Artículo en Inglés | MEDLINE | ID: mdl-39068375

RESUMEN

BACKGROUND: Rising temperatures increase workers' risk of heat-related illnesses due to heat stress (HS). Chronic Kidney Disease of unknown etiology (CKDu) is rising in non-agricultural workers in hot climates. Dehydration, heat stress, and physical exertion can damage cashew workers' kidney health. METHODS: In 2020-2021, 262 cashew workers in Cuddalore, Tamil Nadu were assessed for Wet Bulb Globe Temperature (WBGT), and job-specific American Conference of Governmental Industrial Hygienists standard was used to evaluate workload. "High heat-exposed" meant heat stress exceeded the Threshold Limit Value for safe manual work (27.5 °C for heavy and 28 °C for moderate physical activity). Heat Strain Indicators (HSIs) such as Tympanic Temperature (Ttemp), Sweat Rate (SwR), Urine Specific Gravity (USG), and urine dipstick parameters were measured in all workers, however serum creatinine was measured only in 100 workers. Glomerular Filtration Rate (eGFR) was calculated using the CKD-EPI equation. A standardized questionnaire assessed heat-related health symptoms. RESULTS: Over 65% of workers experienced wet bulb globe temperature exposures exceeding the threshold limit value (Avg.- wet bulb globe temperature 30.4 °C ± 1.8 °C). Ninety-five percent of heat-exposed workers experienced at least one of the physiological heat strain indicators. The risk of urogenital symptoms was 7.7 times greater among high-heat-exposed workers (95% CI 3.4-17.1), which corroborates well with the measured post shift urine specific gravity (37%). Despite controlling for relevant confounders (age & gender), high-heat-exposed workers had 3.5-fold higher odds of eGFR < 90 ml/min/1.73 m2 compared to less-exposed workers (95% CI 1.1-10.6). CONCLUSION: Persistent heat stress promotes heat-related disorders in cashew workers and lowers eGFR. This needs further investigation to determine its longer term effects on kidney function. Workplace cooling solutions that reduce heat stress are critically needed to protect the kidneys and ensure occupational health.

13.
Artículo en Inglés | MEDLINE | ID: mdl-39008629

RESUMEN

This study aimed to develop and validate a multi-mycotoxin analysis method applied to cashew nuts by employing a miniaturized QuEChERS method followed by determination by ultra-performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). Satisfactory recoveries for the concentrations 1, 10 and 30 ng g-1, ranging from 66% (fumonisin B1) to 110% (ochratoxin A) and relative standard deviations lower than 9% (fumonisin B2) were obtained for the target compounds. Limits of quantification ranged from 0.004 ng g-1 (sterigmatocystin) to 0.59 ng g-1 (alternariol). The applicability of the analytical method was verified by analyzing 30 cashew nut samples from the city of Rio de Janeiro, RJ, southeastern Brazil. Aflatoxins M1, G2, G1, B2, B1, ochratoxin A and sterigmatocystin were detected, respectively, in 27%, 10%, 17%, 30%, 30%, 30% and 50% of the analyzed samples, at maximum concentrations of 0.56, 0.67, 1.43, 2.02, 4.93, 4.81, and 0.35 ng g-1. The maximum limit established by Brazilian legislation for aflatoxins was not exceeded by any of the analyzed samples.


Asunto(s)
Anacardium , Contaminación de Alimentos , Micotoxinas , Nueces , Espectrometría de Masas en Tándem , Micotoxinas/análisis , Anacardium/química , Cromatografía Líquida de Alta Presión , Contaminación de Alimentos/análisis , Nueces/química , Aflatoxinas/análisis , Cromatografía Líquida con Espectrometría de Masas
14.
Front Nutr ; 11: 1407028, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38988854

RESUMEN

Introduction: Cashew nut contains bioactive compounds that modulate satiety and food intake, but its effects on body fat during energy restriction remains unknown. This study aimed to assess the effects of cashew nut and cashew nut oil on body fat (primary outcome) as well as adiposity, cardiometabolic and liver function markers (secondary outcomes). Materials and methods: An eight-week (8-wk) randomized controlled-feeding study involved 68 adults with overweight/obesity (40 women, BMI: 33 ± 4 kg/m2). Participants were randomly assigned to one of the energy-restricted (-500 kcal/d) groups: control (CT, free-nuts), cashew nut (CN, 30 g/d), or cashew nut oil (OL, 30 mL/d). Body weight, body composition, and blood collection were assessed at the baseline and endpoint of the study. Results: After 8-wk, all groups reduced significantly body fat (CT: -3.1 ± 2.8 kg; CN: -3.3 ± 2.7 kg; OL: -1.8 ± 2.6 kg), body weight (CT: -4.2 ± 3.8 kg; CN: -3.9 ± 3.1 kg; OL: -3.4 ± 2.4 kg), waist (CT: -5.1 ± 4.6 cm; CN: -3.9 ± 3.9 cm; OL: -3.7 ± 5.3 cm) and hip circumferences (CT: -2.9 ± 3.0 cm; CN: -2.7 ± 3.1 cm; OL: -2.9 ± 2.3 cm). CN-group reduced liver enzymes (AST: -3.1 ± 5.3 U/L; ALT: -6.0 ± 9.9 U/L), while the OL-group reduced LDL-c (-11.5 ± 21.8 mg/dL) and atherogenic index (-0.2 ± 0.5). Both intervention groups decreased neck circumference (CN: -1.0 ± 1.2 cm; OL: -0.5 ± 1.2 cm) and apo B (CN: -6.6 ± 10.7 mg/dL; OL: -7.0 ± 15.3 mg/dL). Conclusion: After an 8-wk energy-restricted intervention, all groups reduced body fat (kg), weight, and some others adiposity indicators, with no different effect of cashew nut or cashew nut oil. However, participants in the intervention groups experienced additional reductions in atherogenic marker, liver function biomarkers, and cardiovascular risk factors (neck circumference and apo B levels), with these effects observed across the OL group, CN group, and both intervention groups, respectively.Clinical trial registration:https://ensaiosclinicos.gov.br/rg/RBR-8xzkyp2, identifier 8xzkyp2.

15.
Int J Biol Macromol ; 275(Pt 1): 133588, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38960246

RESUMEN

The understanding of cancer immunity and antitumor factors generated by natural polysaccharides is not yet fully comprehended. Polysaccharides, like cashew gum (CG), can exhibit immunomodulatory action and may assist in the antitumor process and side effects relieve. This study aimed to determine the antitumor effect of CG alone or in combination with cyclophosphamide (CTX), and its interactions with immune cells, in a murine melanoma model, using the B16-F10 cell line. Tumor growth inhibition, hematological, histopathological, ELISA, flow cytometry, immunofluorescence, and qRT-PCR analyses were performed to elucidate the antitumor potential, involvement of immune cells, and potential toxic effects. CG showed significant tumor growth inhibition, reaching up to 42.9 % alone and 51.4 % in combination with CTX, with mild toxicity to organs. CG enhanced leukocyte count, even in the presence of CTX. Furthermore, CG influenced the activation of tumor-associated macrophages (TAM), characterized by an increase in Il4, as well as a reduction in Ifng, Il1b, Tgfb, and Il6 gene expression. Nevertheless, these effects did not compromise the antitumor activity of CG. In summary, the combination of CG with CTX is a promising approach for leukopenia, one of the most important side effects of cancer treatment and deserves further investigation.


Asunto(s)
Anacardium , Ciclofosfamida , Melanoma Experimental , Animales , Ciclofosfamida/farmacología , Ratones , Melanoma Experimental/tratamiento farmacológico , Melanoma Experimental/patología , Anacardium/química , Gomas de Plantas/química , Gomas de Plantas/farmacología , Línea Celular Tumoral , Modelos Animales de Enfermedad , Citocinas/metabolismo , Macrófagos Asociados a Tumores/efectos de los fármacos , Macrófagos Asociados a Tumores/inmunología
16.
Food Res Int ; 191: 114724, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39059920

RESUMEN

Plant-based cheese analogs have emerged as a novel global market trend driven by sustainability concerns for our planet. This study examines eleven soft ripened plant-based cheese analogs produced in Europe, primarily with bloomy rinds and cashew nuts as the main ingredient. First, we focused on exploring the macronutrients and salt content stated on the labels, as well a detailed fatty acid analysis of the samples. Compared to dairy cheeses, plant-based cheeses share similarities in lipid content, but their fatty acid profiles diverge significantly, with higher ratio of mono- and polyunsaturated fatty acids such as oleic and linoleic acids. We also investigated the microbiota of these analog products, employing a culture-dependent and -independent approaches. We identified a variety of microorganisms in the plant-based cheeses, with Lactococcus lactis and Leuconostoc mesenteroides being the dominant bacterial species, and Geotrichum candidum and Penicillium camemberti the dominant fungal species. Most of the species characterized are similar to those present in dairy cheeses, suggesting that they have been inoculated as culture starters to contribute to the sensorial acceptance of plant-based cheeses. However, we also identify several species that are possibly intrinsic to plant matrices or originate from the production environment, such as Pediococcus pentosaceus and Enterococcus spp. This coexistence of typical dairy-associated organisms with plant associated species highlights the potential microbial dynamics inherent in the production of plant-based cheese. These findings will contribute to a better understanding of plant-based cheese alternatives, enable the development of sustainable products, and pave the way for future research exploring the use of plant-based substrates in the production of cheese analogues.


Asunto(s)
Queso , Microbiología de Alimentos , Queso/microbiología , Queso/análisis , Europa (Continente) , Valor Nutritivo , Ácidos Grasos/análisis , Bacterias/clasificación
17.
BMC Ecol Evol ; 24(1): 101, 2024 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-39039497

RESUMEN

Epidemic of Cashew Fusarium wilt disease (CFWD) has been a continuous focal challenge in the cashew farming, in Tanzania. Limited to edaphic conditions as a major factor in its epidemic, the current study aimed to assess the habitat-disease relationship. Purposive surveys involving assessment of disease prevalence and habitat compositions were conducted across four landscapes of southeastern zone from 2019 to 2023. Findings revealed a widespread of CFWD across diversified landscapes possessing varying habitat characteristics, mainly cultivated land with mature cashew, brownish sand loamy soils, grassland or shrub vegetation, seasonal river streamlines and natural water wells. The highest disease incidence and severity were noted at Nachingwea/Masasi plain (99.28:88.34%) followed by Liwale inland plain (98.64:89.3%), Coastal zone (72.72:59.83%) and Tunduru dissected plain (62.13:54.54%). The habitat characteristics were strongly similar within the landscape (0.86-Jaccard index) except between villages of the coastal zone (0.71-Jaccard index). Across landscapes, Nachingwea/Masasi plains and the Coastal zone were strongly similar to Tunduru dissected plain (0.63-1.0-Jaccard index), but strongly dissimilar with the Liwale inland plain (0.67-0.70- Jaccard distance). Furthermore, the presence of greater than 0.5 suitability indices across landscapes were revealed, with Liwale inland plain having strongest suitability index of 0.743 followed by Coastal zone (0.681), Tunduru dissected plain (0.617) and Nachingwea/Masasi plain. Significantly, the habitats had an increase of 0.1 suitability index, and positively correlated with disease prevalence by triggering disease incidence of 13.9% and severity of 31.4%. The study for the first time revealed the presence of an association between disease prevalence and landscape habitat characteristics of southeastern, Tanzania; paving the way to inclusive thinking of habitat as one of the drivers in the prevalence of fusarium wilt disease of cashews. Further research on the genetic coevolution of Fusarium oxysporum across landscapes to strengthen disease risk management in the cashew industry is recommended.


Asunto(s)
Anacardium , Ecosistema , Fusarium , Enfermedades de las Plantas , Tanzanía/epidemiología , Anacardium/microbiología , Fusarium/aislamiento & purificación , Enfermedades de las Plantas/microbiología , Enfermedades de las Plantas/estadística & datos numéricos , Productos Agrícolas/microbiología , Prevalencia
18.
Int Arch Allergy Immunol ; : 1-7, 2024 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-38880088

RESUMEN

INTRODUCTION: Terebinth (Pistacia terebinthus) belongs to the same botanical family as pistachio (Pistacia vera) and cashew (Anacardium occidentale). Although it is known that there is cross-sensitivity between pistachio and cashew, the cross-sensitivity of terebinth with pistachio or cashew has not been investigated. The objective of our study was to evaluate the sensitivity to terebinth in children with pistachio sensitivity. METHODS: This study was conducted between September 2021 and June 2022 at Adiyaman University Faculty of Medicine Hospital. It analyzed the results of children who underwent skin prick testing (SPT) for food allergy. Of the 712 food skin prick tests reviewed, 27 children were identified with pistachio sensitivity. Prick tests with commercial extract for cashew and prick-to-prick tests for terebinth were applied to these children. RESULTS: The median age was two, and 78% were male. Of the children with pistachio sensitivity, 96% demonstrated cross-sensitivity to terebinth and 100% to cashew. There was a strong correlation between the size of SPT responses in pistachio, cashew, and terebinth. Only four children had previously consumed terebinth, and two of these children had allergic reactions. CONCLUSION: Our study demonstrates a high cross-sensitivity between terebinth, pistachio, and cashew. We recommend that individuals with pistachio or cashew allergy/sensitivity avoid terebinth until tests confirm it is safe to consume. Further studies are needed to demonstrate the clinical significance of this cross-sensitivity and identify the major allergen involved.

19.
PeerJ ; 12: e16538, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38881862

RESUMEN

The cultivation of cashew crops carries numerous economic advantages, and countries worldwide that produce this crop face a high demand. The effects of wind speed and wind direction on crop yield prediction using proficient deep learning algorithms are less emphasized or researched. We propose a combination of advanced deep learning techniques, specifically focusing on long short-term memory (LSTM) and random forest models. We intend to enhance this ensemble model using dynamic time warping (DTW) to assess the spatiotemporal data (wind speed and wind direction) similarities within Jaman North, Jaman South, and Wenchi with their respective production yield. In the Bono region of Ghana, these three areas are crucial for cashew production. The LSTM-DTW-RF model with wind speed and wind direction achieved an R2 score of 0.847 and the LSTM-RF model without these two key features R2 score of (0.74). Both models were evaluated using the augmented Dickey-Fuller (ADF) test, which is commonly used in time series analysis to assess stationarity, where the LSTM-DTW-RF achieved a 90% level of confidence, while LSTM-RF attained an 87.99% level. Among the three municipalities, Jaman South had the highest evaluation scores for the model, with an RMSE of 0.883, an R2 of 0.835, and an MBE of 0.212 when comparing actual and predicted values for Wenchi. In terms of the annual average wind direction, Jaman North recorded (270.5 SW°), Jaman South recorded (274.8 SW°), and Wenchi recorded (272.6 SW°). The DTW similarity distance for the annual average wind speed across these regions fell within specific ranges: Jaman North (±25.72), Jaman South (±25.89), and Wenchi (±26.04). Following the DTW similarity evaluation, Jaman North demonstrated superior performance in wind speed, while Wenchi excelled in wind direction. This underscores the potential efficiency of DTW when incorporated into the analysis of environmental factors affecting crop yields, given its invariant nature. The results obtained can guide further exploration of DTW variations in combination with other machine learning models to predict higher cashew yields. Additionally, these findings emphasize the significance of wind speed and direction in vertical farming, contributing to informed decisions for sustainable agricultural growth and development.


Asunto(s)
Productos Agrícolas , Predicción , Viento , Predicción/métodos , Ghana , Productos Agrícolas/crecimiento & desarrollo , Anacardium/crecimiento & desarrollo , Aprendizaje Profundo
20.
Polymers (Basel) ; 16(10)2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38794549

RESUMEN

This study investigates the unique morphology and mechanical properties of multi-jet electrospun cashew gum (CG) when combined with high-molecular-weight polyethylene oxide (PEO) and glycerol. Cashew gum (CG) is a low-cost, non-toxic heteropolysaccharide derived from Anacardium occidentale trees. Initially, the electrospinnability of aqueous solutions of cashew gum alone or in combination with PEO was evaluated. It was found that cashew gum alone was not suitable for electrospinning; thus, adding a small quantity of PEO was needed to create the necessary molecular entanglements for fiber formation. By using a single emitter with a CG:PEO ratio of 85:15, straight and smooth fibers with some defects were obtained. However, additional purification of the cashew gum solution was needed to produce more stable and defect-free straight and smooth fibers. Additionally, the inclusion of glycerol as a plasticizer was required to overcome material fragility. Interestingly, when the optimized formulation was electrospun using multiple simultaneous emitters, thicker aligned fiber bundles were achieved. Furthermore, the resulting oriented fiber mats exhibited unexpectedly high elongation at break under ambient conditions. These findings underscore the potential of this bio-polysaccharide-based formulation for non-direct water contact applications that demand elastic properties.

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