Nuts
Demographic threats to the sustainability of Brazil nut exploitation. (1/11)
A comparative analysis of 23 populations of the Brazil nut tree (Bertholletia excelsa) across the Brazilian, Peruvian, and Bolivian Amazon shows that the history and intensity of Brazil nut exploitation are major determinants of population size structure. Populations subjected to persistent levels of harvest lack juvenile trees less than 60 centimeters in diameter at breast height; only populations with a history of either light or recent exploitation contain large numbers of juvenile trees. A harvesting model confirms that intensive exploitation levels over the past century are such that juvenile recruitment is insufficient to maintain populations over the long term. Without management, intensively harvested populations will succumb to a process of senescence and demographic collapse, threatening this cornerstone of the Amazonian extractive economy. (+info)Mass spectrometry and structural characterization of 2S albumin isoforms from Brazil nuts (Bertholletia excelsa). (2/11)
Proteomic approaches have been used to characterise the main 2S albumin isoforms from Brazil nuts (Bertholletia excelsa). Whilst most isoforms ( approximately 10 discrete protein species) exhibited molecular masses of around 12 kDa with a high amino acid sequence homology, important charge heterogeneity was found, with pIs varying between 4.6 and 6.6, with one >or=7.0. Proteomic analysis showed that these corresponded to a total of six National Center for Biotechnology Information (NCBI) accessions and that three isoforms had been purified to homogeneity corresponding to gi/384327, 112754 and 99609. The latter sequence corresponds to an isoform, previously only identified at the nucleotide sequence level, had a slightly higher molecular weight (13.4 kDa), and with noticeable differences in the primary structure. Proteins corresponding to six different NCBI accessions were identified, the heterogeneity of which had been increased by posttranslational processing. Evidence was found of cyclization of the N-terminal glutamine residue in two isoforms, together with ragged C-termini, indicative of carboxypeptidase activity within the vacuole following posttranslational processing. No evidence of glycosylation was found. Circular dichroism (CD) and Fourier transform-infrared (FT-IR) spectroscopy indicated all the studied isoforms were predominantly alpha-helical in nature, but that the Mr 13400 species was structurally distinct, with a higher proportion of alpha-helical structure. (+info)Dangerous liaison: sexually transmitted allergic reaction to Brazil nuts. (3/11)
Brazil nuts are the second most frequent cause of nut allergy in the United Kingdom. We report the case of a 20-year-old woman with documented Brazil nut allergy who developed widespread urticaria and mild dyspnea after intercourse with her boyfriend who had earlier consumed Brazil nuts. Skin prick testing with the boyfriend's semen after Brazil nut consumption confirmed significant reactivity whereas a sample before nut consumption was negative. We believe this to be the first case of a sexually transmitted allergic reaction. (+info)Purification, crystallization and initial crystallographic characterization of brazil-nut allergen Ber e 2. (4/11)
Peanut and tree-nut allergies have attracted considerable attention because of their frequency and their lifelong persistence. Brazil-nut (Bertholletia excelsa) allergies have been well documented and the 11S legumin-like seed storage protein Ber e 2 (excelsin) is one of the two known brazil-nut allergens. In this study, Ber e 2 was extracted from brazil-nut kernels and purified to high purity by crystalline precipitation and gel-filtration chromatography. Well diffracting single crystals were obtained using the hanging-drop vapour-diffusion method. A molecular-replacement structural solution has been obtained. Refinement of the structure is currently under way. (+info)Brazil nuts: an effective way to improve selenium status. (5/11)
BACKGROUND: Brazil nuts provide a rich natural source of selenium, yet no studies have investigated the bioavailability of selenium in humans. OBJECTIVE: We investigated the efficacy of Brazil nuts in increasing selenium status in comparison with selenomethionine. DESIGN: A randomized controlled trial was conducted with 59 New Zealand adults. Participants consumed 2 Brazil nuts thought to provide approximately 100 mug Se, 100 mug Se as selenomethionine, or placebo daily for 12 wk. Actual intake from nuts averaged 53 mug Se/d (possible range: 20-84 mug Se). Plasma selenium and plasma and whole blood glutathione peroxidase (GPx) activities were measured at baseline and at 2, 4, 8, and 12 wk, and effects of treatments were compared. RESULTS: Plasma selenium increased by 64.2%, 61.0%, and 7.6%; plasma GPx by 8.3%, 3.4%, and -1.2%; and whole blood GPx by 13.2%, 5.3%, and 1.9% in the Brazil nut, selenomethionine, and placebo groups, respectively. Change over time at 12 wk in plasma selenium (P < 0.0001 for both groups) and plasma GPx activity in the Brazil nut (P < 0.001) and selenomethionine (P = 0.014) groups differed significantly from the placebo group but not from each other. The change in whole blood GPx activity was greater in the Brazil nut group than in the placebo (P = 0.002) and selenomethionine (P = 0.032) groups. CONCLUSION: Consumption of 2 Brazil nuts daily is as effective for increasing selenium status and enhancing GPx activity as 100 mug Se as selenomethionine. Inclusion of this high-selenium food in the diet could avoid the need for fortification or supplements to improve the selenium status of New Zealanders. (+info)Parallel rate heterogeneity in chloroplast and mitochondrial genomes of Brazil nut trees (Lecythidaceae) is consistent with lineage effects. (6/11)
(+info)Effect of vegetable oil (Brazil nut oil) and mineral oil (liquid petrolatum) on dental biofilm control. (7/11)
(+info)Aspergillus bertholletius sp. nov. from Brazil nuts. (8/11)
(+info)'Bertholletia' is a botanical name that refers to a genus of large, evergreen trees in the family Lecythidaceae. The most well-known species in this genus is Bertholletia excelsa, which is commonly known as the Brazil nut tree. This tree is native to the rainforests of South America, primarily in Brazil, Peru, and Bolivia.
The Brazil nut tree is a tall, straight tree that can grow up to 50 meters in height. It produces large, woody capsules that contain 10-24 nuts, which are encased in a hard, brown shell. These nuts are a valuable source of food and income for people living in the Amazon region, and they are also exported worldwide as a popular culinary ingredient.
The genus Bertholletia is named after the French chemist Claude Louis Berthollet (1748-1822), who made significant contributions to the field of chemistry during the late 18th and early 19th centuries.
In a medical context, "nuts" are typically referred to as a type of food that comes from dry fruits with one seed in them. They are often high in healthy fats, fiber, protein, and various essential nutrients. Examples include almonds, walnuts, hazelnuts, cashews, pistachios, and pecans. However, it's important to note that some people may have allergies to certain types of nuts, which can cause serious health problems.
Brazil nut
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Category:Bertholletia excelsa - Wikimedia Commons
Biosorption of cationic dyes by Pará chestnut husk (Bertholletia excelsa) | Water Science & Technology | IWA Publishing
Biosorption of cationic dyes by Pará chestnut husk (Bertholletia excelsa) | Water Science & Technology | IWA Publishing
Rooting of juvenile cuttings of Bertholletia excelsa under different concentrations of indolebutyric acid
Nut production in Bertholletia excelsa across a logged forest mosaic: Implications for multiple forest use<...
Brazil nut - Wikipedia
Brazil nut (Bertholletia excelsa, Lecythidaceae) regeneration in logging gaps in the Peruvian Amazon - Geography
Isolation and characterization of microsatellite markers for Bertholletia excelsa (Lecythidaceae) population genetic analysis |...
Nut Production in Bertholletia excelsa across a Logged Forest Mosaic: Implications for Multiple Forest Use - Bangor University
MPM: V-10. Nuts and Nut Products Methods | FDA
Repositório UFAM: Utilização de resíduos de Castanha (Bertholletia excelsa) e óleo de Andiroba (Carapa guianensis Aubl.) como...
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Brazil13
- Pará chestnut husk ( Bertholletia excelsa ) (PCH), an agro-industrial waste largely generated in Brazil, was employed as a low-cost and efficient biosorbent to remove the cationic dyes Crystal Violet (CV) and Methylene Blue (MB) from aqueous media. (iwaponline.com)
- Brazil nut (Bertholletia excelsa, Lecythidaceae) is one of the world's most economically-important NTFP species extracted almost entirely from natural forests across the Amazon Basin. (uea.ac.uk)
- The Brazil nut (Bertholletia excelsa) is a South American tree in the family Lecythidaceae, and it is also the name of the tree's commercially harvested edible seeds. (wikipedia.org)
- 2014. Brazil nut ( Bertholletia excelsa , Lecythidaceae) regeneration in logging gaps in the Peruvian Amazon. (ua.edu)
- Seven polymorphic microsatellite markers were developed and validated for Bertholletia excelsa (Brazil nut tree) population genetic studies. (geneticsmr.org)
- Brazil Nuts ( Bertholletia excelsa Humb. (fda.gov)
- Occasionally one can still hear Brazil nuts ( Bertholletia excelsa ) referred to as Nigger-toes. (the-scientist.com)
- One thing that can also help your sperm are Brazil nuts (Bertholletia excelsa). (sub-shop.com)
- Brazil nuts, known scientifically as Bertholletia excelsa, are a type of tree nut that are native to the Amazon rainforest in South America. (foreignpolicy-infocus.org)
- The researchers found that commercially valuable species such as Brazil nut ( Bertholletia excelsa ), cacao ( Theobroma cacao ) and açai palm ( Euterpe oleracea ) will decline by at least 50 percent. (scientificamerican.com)
- Bertholletia Excelsa Seed (Brazil Nut) Oil known to be rich in omega fatty acids, this nourishing oil helps fight frizz, tames and protects the hair, while helping to reduce breakage. (kevinmurphy.com.au)
- K. Koch], Brazil nuts (Bertholletia excelsa), pistachios (Pistacia vera), macadamia nuts (Macadamia ternifolia), and nut-based products, with the exception of a) nuts used in the production of distillates or ethyl alcohol from agricultural sources for spirits and other alcoholic beverages. (mcdonalds.be)
- To accomplish this, the endophytic fungus Trichoderma asperellum was isolated from Bertholletia excelsa (Brazil nut) almonds. (bvsalud.org)
Bonpl3
- Hierarchical outcrossing among and within fruits in Bertholletia excelsa Bonpl. (geneticsmr.com)
- Repeatability coefficient for the fruit production and selection of Bertholletia excelsa (Bonpl. (uchile.cl)
- in natural stands of Acre stateCoeficiente de repetibilidade para produção de frutos e seleção de matrizes de Bertholletia excelsa (Bonpl. (uchile.cl)
Species2
- For ITIS & Kew Gardens 'World Checklist' & NCBI & The Plant List , this is currently the only extant (living) species in the genus Bertholletia , but not for GRIN (Retrieved on 10 July 2014). (wikimedia.org)
- The tree is the only species in the monotypic genus Bertholletia, named after French chemist Claude Louis Berthollet. (wikipedia.org)
Castanha2
Production2
- Recalcitrant behavior and slow and irregular germination are limiting factors for the production of Bertholletia excelsa seedling production, through the conventional process. (scielo.org.mx)
- Nut Production in Bertholletia excelsa across a Logged Fores. (bangor.ac.uk)
Excelsa Seed Oil1
- Thanks to its ability to help defend against oxidative stress, Bertholletia Excelsa Seed Oil can improve skin's appearance by smoothing and firming the skin, offering protection against sun damage, and reducing the appearance of blemishes, wrinkles, and stretch marks. (natureinbottle.com)
Lecythidaceae3
- Our organically crafted Brazil Nut Oil is cold pressed from the nuts of Bertholletia excelsa , also called Castanha do Para , a South American tree in the family Lecythidaceae . (natureinbottle.com)
- The Brazil nut (Bertholletia excelsa) is a South American tree in the family Lecythidaceae, and it is also the name of the tree's commercially harvested edible seeds. (wikipedia.org)
- Brazil nuts, Bertholletia excelsis, are in the Lecythidaceae family. (portugalresident.com)
Brazil Nut Oil2
- Brazil Nut Oil (Bertholletia excelsa) is highly effective as a skin emollient, rich in antioxidants for renewal of skin and hair. (beautyologie.com)
- Additionally, Natural Sourcing introduced Organic Brazil Nut Oil ( Bertholletia Excelsa Oil). (gcimagazine.com)
Humb2
- Bertholletia excelsa Humb. (natureinbottle.com)
- The Brazil nut tree (Bertholletia excelsa Humb. (edu.br)
Macadamia1
- K. Koch], Brazil nuts (Bertholletia excelsa), pistachios (Pistacia vera), macadamia nuts (Macadamia ternifolia), and nut-based products, with the exception of a) nuts used in the production of distillates or ethyl alcohol from agricultural sources for spirits and other alcoholic beverages. (mcdonalds.be)
Almond1
- The present study aimed at characterizing the oil extracted from Bertholletia excelsa H.B.K. almond, a native species from the Amazon region. (phcog.com)
Nuts4
- Brazil nuts, known scientifically as Bertholletia excelsa, are a type of tree nut that are native to the Amazon rainforest in South America. (foreignpolicy-infocus.org)
- 2011. Investigation of Se-containing proteins in Bertholletia excelsa HBK (Brazil nuts) by ICPMS, MALDI-MS and LC-ESI-MS methods. (nih.gov)
- Studies on Brazil nut (Bertholletia excelsa H.B.K.) and their products revealed its antioxidant benefits, especially due to the Selenium (Se) level, naturally present in Brazil nuts. (thesquirrelboard.com)
- Brazil nut trees ( Bertholletia excelsa ) produce popular commercial nuts which are a valuable non-timber forest product. (bertholletia.org)
Trees2
- Brazil nut trees ( Bertholletia excelsa ) are the sole species in the monotypic genus Bertholletia , named for the French chemist Claude Louis Berthollet. (gardeningknowhow.com)
- In the Amazon rainforest, the towering trees of the emergent layer include the Brazil nut tree ( Bertholletia excelsa ) and the kapok tree ( Ceiba pentandra ). (nationalgeographic.org)
Tree3
- The tree is the only species in the monotypic genus Bertholletia, named after French chemist Claude Louis Berthollet. (wikipedia.org)
- The Brazil nut ( Bertholletia excelsa ) is a species of tree native to the Amazon region. (edu.br)
- A tree known as Castanheira-do-Brasil (Bertholletia excelsa) stands in a farm during an operation to combat illegal mining and log. (scanpix.no)