Coconut Allergy: Characteristics of Reactions and Diagnostic Predictors in a Pediatric Tertiary Care Center.
CONCLUSION: Although the rate of reactivity to coconut in sensitized individuals is low, half of reactions from consumption met criteria for anaphylaxis. Clinicians should be aware of the spectrum of reactions and diagnostic utility of sIgE and SPT.
PMID: 33548470 [PubMed - as supplied by publisher] (Source: Annals of Allergy, Asthma and Immunology)
Source: Annals of Allergy, Asthma and Immunology - February 3, 2021 Category: Allergy & Immunology Authors: Kruse L, Lor J, Yousif R, Pongracic JA, Fishbein AB Tags: Ann Allergy Asthma Immunol Source Type: research
IgE-binding to vicilin-like antimicrobial peptides is associated with systemic reactions to macadamia nut
ConclusionVLAP proteins are the first described macadamia nut components with serological and functional allergenic properties and they are associated with systemic reactions to macadamia nut. (Source: Clinical and Translational Allergy)
Source: Clinical and Translational Allergy - December 2, 2020 Category: Allergy & Immunology Source Type: research
Phytochemical constituents and anti-tyrosinase activity of Macadamia integrifolia leaves extract.
In this study, ethanolic extract of M. integrifolia leaves was phytochemically investigated which led to the isolation of 6 compounds. Two functional galactolipids, i.e., monogalactosyl diacylglycrol 36:4 (MGDG 36:4), digalactosyl monoacylglycerol 18:2 (DGMG 18:2), gallic acid and protocatechuic acid were identified in the genus Macadamia for the first time, in addition to the cyanogenic glycoside dhurrin and β-sitosterol. Additionally, anti-tyrosinase activity of the extract, its fractions and isolated compounds was investigated and a good tyrosinase inhibitory activity was observed for the extract, IC50=85 µg/mL and ...
Source: Natural Product Research - November 19, 2020 Category: Biochemistry Authors: El Hawary SS, Abubaker M, Abd El-Kader EM, Mahrous EA Tags: Nat Prod Res Source Type: research
Thermal inactivation of Salmonella, Shiga toxin-producing Escherichia coli, Listeria monocytogenes, and a surrogate (Pediococcus acidilactici) on raisins, apricot halves, and macadamia nuts using vacuum-steam pasteurization.
The objective of this study was to determine reductions of Salmonella, STEC, L. monocytogenes, and a possible surrogate (Pediococcus acidilactici) on dried apricot halves, whole macadamia nuts, and raisins after treatment with vacuum-assisted steam at three temperatures (62 °C, 72 °C, or 82 °C) and multiple time intervals. Bacterial inactivation was variable between commodities, with higher temperatures and longer times necessary to achieve comparable reductions of pathogens on apricot halves and macadamia nuts compared to raisins. Reductions of the tested pathogens were comparable; therefore, one species was not mor...
Source: International Journal of Food Microbiology - August 7, 2020 Category: Food Science Authors: Acuff JC, Wu J, Marik C, Waterman K, Gallagher D, Huang H, Williams RC, Ponder MA Tags: Int J Food Microbiol Source Type: research
Impact of ionizing radiation on cake from Brazilian macadamia nut (Macadamia integrifolia) after oil extraction
Publication date: July 2020Source: Radiation Physics and Chemistry, Volume 172Author(s): Ina P. Rao, Maria J.A. Armelin, Nelida L. del Mastro (Source: Radiation Physics and Chemistry)
Source: Radiation Physics and Chemistry - March 16, 2020 Category: Physics Source Type: research
Source Attribution of Salmonella in Macadamia Nuts to Animal and Environmental Reservoirs in Queensland, Australia
Foodborne Pathogens and Disease, Ahead of Print. (Source: Foodborne Pathogens and Disease)
Source: Foodborne Pathogens and Disease - December 5, 2019 Category: Food Science Authors: Nanna Munck James Smith John Bates Kathryn Glass Tine Hald Martyn D. Kirk Source Type: research
A label-free shotgun proteomics analysis of macadamia nut
In this study, we present a systematic proteomic overview of macadamia nut using a label-free shotgun proteomic approach. We identified 947 proteins in 723 clusters and Gene Ontology analysis revealed proteins across 46 functional categories including carbohydrate metabolism (10%), protein metabolic processes (5%), amino acid metabolism (4%), transport (4%), stress response (3%), lipid metabolism (3%), protein folding (3%) and defense response (1.4%). The defense response proteins accounted for 24% of the total peptide abundance. The vicilin-like macadamia antimicrobial peptides 2-3 (MiAMP2) was the most abundant protein, ...
Source: Food Research International - December 1, 2019 Category: Food Science Source Type: research
A review of biological functions, health benefits, and possible de novo biosynthetic pathway of palmitoleic acid in macadamia nuts
Publication date: November 2019Source: Journal of Functional Foods, Volume 62Author(s): Wei Hu, Melissa Fitzgerald, Bruce Topp, Mobasher Alam, Tim J. O'HareAbstractPalmitoleic acid is an unusual omega-7 monounsaturated fatty acid that occurs naturally in high levels in macadamia plants. Due to its wide public acceptance and being a commonly occurring food, macadamia nuts may serve as an important dietary agent for the delivery of palmitoleic acid to the human body. This review focuses on discussing the biological functions of palmitoleic acid, the association of palmitoleic acid with various diseases, as well as the antici...
Source: Journal of Functional Foods - August 27, 2019 Category: Nutrition Source Type: research
Ultrahigh-energy-density fluorinated calcinated macadamia nut shell cathode for lithium/fluorinated carbon batteries
This study presents a new approach for designing exceptionally high-energy-density CFx compounds for lithium primary batteries using an accessible and inexpensive raw material.Graphical abstract (Source: Carbon)
Source: Carbon - August 3, 2019 Category: Materials Science Source Type: research
Assessment of macadamia nut quality defects by means of near infrared spectroscopy (NIRS) and nuclear magnetic resonance (NMR)
Publication date: Available online 12 June 2019Source: Food ControlAuthor(s): Lívia Cirino de Carvalho, Camilo de Lelis Medeiros de Morais, Kássio Michell Gomes de Lima, Gustavo Henrique de Almeida TeixeiraAbstractMacadamia kernels are visually sorted based on the presence of quality defects by specialized labors. However, this process is not as accurate as non-destructive methods such as near infrared spectroscopy (NIRS) and nuclear magnetic resonance (NMR). Thus, NIRS and NMR in combination with chemometrics have become established non-destructive method for rapid assessment of quality parameters in the food and agricu...
Source: Food Control - June 12, 2019 Category: Food Science Source Type: research
Non-destructive assessment of the oxidative stability of intact macadamia nuts during the drying process by near-infrared spectroscopy
Publication date: Available online 21 December 2018Source: LWTAuthor(s): Lívia C. Carvalho, Marcondes L. Leite, Camilo L.M. Morais, Kássio M.G. Lima, Gustavo H.A. TeixeiraAbstractWe have developed a rapid non-destructive method to assess the oxidative stability of intact macadamia nuts using near-infrared spectroscopy (NIRS). Intact macadamia nuts of the cultivars HAES 344 ‘Kau’, HAES 660 ‘Keaau’, IAC 4–12 B, and IAC Campinas B were harvested and immediately oven-dried for 4 days at 30 °C, 2 days at 40 °C, and 1 day at 60 °C to achieve 1.5% kernel moisture content. At each drying step nuts were withd...
Source: LWT Food Science and Technology - January 4, 2019 Category: Food Science Source Type: research
Molecules, Vol. 23, Pages 3126: Anti-Inflammatory, Antioxidant, and Hypolipidemic Effects of Mixed Nuts in Atherogenic Diet-Fed Rats
In conclusion, mixed nuts and individual nut varieties have comparable effects on CVD risk factors in rats. (Source: Molecules)
Source: Molecules - November 29, 2018 Category: Chemistry Authors: Mee Young Hong Shauna Groven Amanda Marx Caitlin Rasmussen Joshua Beidler Tags: Article Source Type: research
Determination of Serotonin in Nuts and Nut Containing Products by Liquid Chromatography Tandem Mass Spectrometry
Publication date: Available online 17 August 2018Source: Food ChemistryAuthor(s): Cemile Yılmaz, Neslihan Göncüoğlu Taş, Tolgahan Kocadağlı, Vural GökmenAbstractAn ultra performance liquid chromatography-mass spectrometry (UPLC-MS/MS) method was developed for the determination of serotonin in raw and roasted nuts (almond, Brazil nut, cashew, chestnut, coconut, hazelnut, Macadamia nut, pecan, peanut, pine nut, pistachio and walnut) as well as nut products (nut containing snack bars, chocolate and spreads) for the first time. Water extraction without prior defatting was performed to leach serotonin from complex matri...
Source: Food Chemistry - August 17, 2018 Category: Food Science Source Type: research
Simultaneous detection of eight species of tree nut in foods using two tetraplex polymerase chain reaction assays.
Abstract
Tree nuts comprise a category of food allergens that must be included in the food labels in several countries. We developed a polymerase chain reaction (PCR) method using eight specific primer pairs to detect eight representative tree nuts (almond, Brazil nut, cashew, hazelnut, macadamia nut, pecan, pistachio, and walnut) under the same experimental conditions. The specificity of the eight primer pairs was confirmed by PCR testing against a variety of plant and animal samples. The detection limit of the method ranged from 1 fg to 1 pg DNA of individual tree nuts. The method detected tree nut DNA i...
Source: Bioscience, Biotechnology, and Biochemistry - August 1, 2018 Category: Biochemistry Authors: Ito M, Mizota T, Kitaguchi T, Ohno K, Ohba T, Tanaka M Tags: Biosci Biotechnol Biochem Source Type: research
Mesoporous activated carbon-zeolite composite prepared from waste macadamia nut shell and synthetic faujasite
Publication date: Available online 30 June 2018Source: Chinese Journal of Chemical EngineeringAuthor(s): Surachai Wongcharee, Vasantha Aravinthan, Laszlo ErdeiAbstractNovel activated carbon-zeolite composite adsorbent was prepared from macadamia shell bio-waste and synthetic zeolite X using hydrothermal treatment. Characterization studies revealed mainly mesoporous structure with 418 m2 g-1 BET surface area with faujasite clusters on the carbon carrier. Sorption capacity for methylene blue model pollutant increased from 85 to 97 mg g-1 with the temperature increase from 25 to 45 oC, and improved with increasing pH. Nonline...
Source: Chinese Journal of Chemical Engineering - July 11, 2018 Category: Chemistry Source Type: research
