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https://www.readbyqxmd.com/read/29337283/variability-studies-of-allochthonous-stone-pine-pinus-pinea-l-plantations-in-chile-through-nut-protein-profiling
#1
V Loewe, R M Navarro-Cerrillo, R Sánchez Lucas, F J Ruiz Gómez, J Jorrín-Novo
Stone pine (Pinus pinea) is characterized by low differentiation of growth parameters, high phenotypic plasticity and low genetic variability; detecting its diversity in introduced Chilean populations is therefore relevant for conservation and breeding programs. Here, variability among allochthonous Stone pine populations in Chile was explored using electrophoresis-based proteomic analysis of pine nuts. Cones from 30 populations distributed along a climatic gradient in Chile were surveyed and sampled, and proteins were extracted from seed flour using the TCA-acetone precipitation protocol...
January 11, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29259614/the-value-of-native-plants-and-local-production-in-an-era-of-global-agriculture
#2
REVIEW
Oren Shelef, Peter J Weisberg, Frederick D Provenza
For addressing potential food shortages, a fundamental tradeoff exists between investing more resources to increasing productivity of existing crops, as opposed to increasing crop diversity by incorporating more species. We explore ways to use local plants as food resources and the potential to promote food diversity and agricultural resilience. We discuss how use of local plants and the practice of local agriculture can contribute to ongoing adaptability in times of global change. Most food crops are now produced, transported, and consumed long distances from their homelands of origin...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29202922/simultaneous-analysis-of-multiple-allergens-in-food-products-by-lc-ms-ms
#3
Lee Sun New, Andre Schreiber, Jianru Stahl-Zeng, Hua-Fen Liu
There is currently no cure for food allergies, and sufferers can only rely on the correct labeling of foods toavoid allergens. Hence, it is important that analytical methods are sensitive and accurate enough to screen for the presence of multiple allergens in food products. In this study, we developed an LC-tandem MS method that is able to simultaneously screen or quantify the signature tryptic peptides of multiple allergen commodities. This method is capable of screening and identifying egg white, skim milk, peanut, soy, and tree nuts (almond, Brazil nut, cashew, hazelnut, pecan, pine nut, pistachio, and walnut) at a detection limit of 10 ppm in incurred bread and cookies...
December 5, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28977729/is-the-profile-of-fatty-acids-tocopherols-and-amino-acids-suitable-to-differentiate-pinus-armandii-suspicious-to-be-responsible-for-the-pine-nut-syndrome-pns-from-other-pinus-species
#4
Bertrand Matthäus, Peiwu Li, Fei Ma, Haiyan Zhou, Jun Jiang, Mehmet Musa Özcan
Pinus armandii is suspicious to be responsible for the Pine Nut Syndrome, a long lasting bitter and metallic taste after the consumption of pine nuts. To find chemical characteristic features for the differentiation of P. armandii from other Pinus species 41 seed samples of the genus Pinus from 22 plant species were investigated regarding the content and the composition of fatty acids, tocopherols and amino acids. The predominant fatty acids in the seed oils were linoleic acid (35.2 - 58.2 g/100 g), oleic acid (14...
October 4, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28871829/effects-of-high-hydrostatic-pressure-on-the-functional-and-rheological-properties-of-the-protein-fraction-extracted-from-pine-nuts
#5
Baiying Cao, Li Fang, Chunlei Liu, Weihong Min, Jingsheng Liu
High hydrostatic pressure treatments could increase the protein solubility (200 MPa), water holding capacity (400 MPa), and oil holding capacity (400 MPa) of pine nuts protein fractions, respectively. The exposed sufhydryl content for albumin was highest at 100 MPa while for other fractions it was 400 MPa, contrary for total sufhydryl content-generally it was at 100 MPa, except glutelin (400 MPa). Pine nuts protein fractions demonstrated the typical behavior of weak gels (G' > G″). After the treatments of high hydrostatic pressure the specific surface area of pine nuts protein particle was increased upon pressure, and the surface of protein became rough which increased the particle size...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28764069/effects-of-pulsed-electric-field-on-intracellular-antioxidant-activity-and-antioxidant-enzyme-regulating-capacities-of-pine-nut-pinus-koraiensis-peptide-qdhch-in-hepg2-cells
#6
Rong Liang, Zuoming Zhang, Songyi Lin
Effects of pulse electric field (PEF) on antioxidant activity of pine nut (Pinus koraiensis) peptide were discussed using H2O2-induced HepG2 cells and changes of peptide structures were measured by MIR, NMR and CD spectra. Using HPLC-MS/MS, a novel peptide was identified as QDHCH. After PEF treatment the DPPH and ABTS radical inhibition, and CAA values of QDHCH were increased to 85.13%±0.17%, 95.45%±0.12%, and 4670.10μmol of quercetin equivalents/100g. The PEF-treated QDHCH has better protective oxidative stress inhibitory of 74...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28677356/age-based-causes-and-clinical-characteristics-of-immediate-type-food-allergy-in-korean-children
#7
Kyunguk Jeong, Jihyun Kim, Kangmo Ahn, So Yeon Lee, Taek Ki Min, Bok Yang Pyun, Yoon Hee Kim, Kyung Won Kim, Myung Hyun Sohn, Kyu Earn Kim, Gwang Cheon Jang, Tae Won Song, Jung Hee Kim, You Hoon Jeon, Yong Ju Lee, Yong Mean Park, Hye Yung Yum, Hyun Hee Kim, Woo Kyung Kim, Sooyoung Lee
PURPOSE: Age-based causes and clinical characteristics of immediate-type food allergy (FA) have not been sufficiently studied. Therefore, we investigated age-dependent clinical profiles of FA in Korean children through an extensive multicenter investigation. METHODS: Using a case report form developed by the authors, a retrospective medical record review was performed of patients (0-18 years old) diagnosed with immediate-type FA between September 2014 and August 2015 in 14 tertiary hospitals in Korea...
September 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28414256/salmonella-survival-kinetics-on-pecans-hazelnuts-and-pine-nuts-at-various-water-activities-and-temperatures
#8
Sofia Santillana Farakos, Régis Pouillot, Susanne E Keller
The impact of temperature, water activity (aw), and nut composition on Salmonella survival on tree nuts has not been thoroughly examined. The aim of this study was to determine the effect of temperature, aw, and nut composition on the survival of Salmonella on tree nuts and develop predictive models. Pecans, hazelnuts, and pine nuts were chosen based on differences in their typical fat content. Nuts were inoculated with a cocktail of five Salmonella serotypes (11 log CFU/mL) and then were dried and stored at 4, 10, and 25°C at 0...
April 17, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28273061/neanderthal-behaviour-diet-and-disease-inferred-from-ancient-dna-in-dental-calculus
#9
Laura S Weyrich, Sebastian Duchene, Julien Soubrier, Luis Arriola, Bastien Llamas, James Breen, Alan G Morris, Kurt W Alt, David Caramelli, Veit Dresely, Milly Farrell, Andrew G Farrer, Michael Francken, Neville Gully, Wolfgang Haak, Karen Hardy, Katerina Harvati, Petra Held, Edward C Holmes, John Kaidonis, Carles Lalueza-Fox, Marco de la Rasilla, Antonio Rosas, Patrick Semal, Arkadiusz Soltysiak, Grant Townsend, Donatella Usai, Joachim Wahl, Daniel H Huson, Keith Dobney, Alan Cooper
Recent genomic data have revealed multiple interactions between Neanderthals and modern humans, but there is currently little genetic evidence regarding Neanderthal behaviour, diet, or disease. Here we describe the shotgun-sequencing of ancient DNA from five specimens of Neanderthal calcified dental plaque (calculus) and the characterization of regional differences in Neanderthal ecology. At Spy cave, Belgium, Neanderthal diet was heavily meat based and included woolly rhinoceros and wild sheep (mouflon), characteristic of a steppe environment...
April 20, 2017: Nature
https://www.readbyqxmd.com/read/28207311/prevalence-of-salmonella-in-cashews-hazelnuts-macadamia-nuts-pecans-pine-nuts-and-walnuts-in-the-united-states
#10
Guodong Zhang, Lijun Hu, David Melka, Hua Wang, Anna Laasri, Eric W Brown, Errol Strain, Marc Allard, Vincent K Bunning, Steven M Musser, Rhoma Johnson, Sofia Santillana Farakos, Virginia N Scott, Régis Pouillot, Jane M Van Doren, Thomas S Hammack
Nuts have been identified as a vector for salmonellosis. The objective of this project was to estimate the prevalence and contamination level of Salmonella in raw tree nuts (cashews, pecans, hazelnuts, macadamia nuts, pine nuts, and walnuts) at retail markets in the United States. A total of 3,656 samples of six types of tree nuts were collected from different types of retail stores and markets nationwide between October 2014 and October 2015. These samples were analyzed using a modified version of the Salmonella culture method from the U...
March 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28199023/analysis-of-%C3%AE-helix-unfolding-in-the-pine-nut-peptide-lys-cys-his-lys-pro-induced-by-pulsed-electric-field
#11
Jie Xing, Sitian Zhang, Mingdi Zhang, Songyi Lin
BACKGROUND: A variety of analytical techniques were applied to explore the effects of pulsed electric field (PEF) on α-helix structural changes in the novel antioxidant peptide Lys-Cys-His-Lys-Pro (KCHKP, 611.76 Da). RESULTS: The relative α-helix content of the KCHKP peptide was significantly altered from 100% to 89.91 ± 0.97% when the electric pulse frequency was 1800 Hz and the field intensity was 10 kV cm(-1) . Moreover, the 1,1-diphenyl-2-pycryl-hydrazyl (DPPH) and 2,2-azinobis diammonium salt (ABTS) radical-scavenging activities of PEF-treated KCHKP were increased from 56...
February 15, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28198188/pinolenic-acid-in-structured-triacylglycerols-exhibits-superior-intestinal-lymphatic-absorption-as-compared-to-pinolenic-acid-in-natural-pine-nut-oil
#12
COMPARATIVE STUDY
Min-Yu Chung, Hyunjoon Woo, Juyeon Kim, Daecheol Kong, Hee-Don Choi, In-Wook Choi, In-Hwan Kim, Sang K Noh, Byung Hee Kim
The positional distribution pattern of fatty acids (FAs) in the triacylglycerols (TAGs) affects intestinal absorption of these FAs. The aim of this study was to compare lymphatic absorption of pinolenic acid (PLA) present in structured pinolenic TAG (SPT) where PLA was evenly distributed on the glycerol backbone, with absorption of pine nut oil (PNO) where PLA was predominantly positioned at the sn-3 position. SPT was prepared via the nonspecific lipase-catalyzed esterification of glycerol with free FA obtained from PNO...
March 1, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27892597/a-multicenter-study-on-anaphylaxis-caused-by-peanut-tree-nuts-and-seeds-in-children-and-adolescents
#13
K Jeong, S-Y Lee, K Ahn, J Kim, H-R Lee, D I Suh, B-Y Pyun, T K Min, J-W Kwon, K-E Kim, K W Kim, M H Sohn, Y H Kim, T W Song, J H Kwon, Y H Jeon, H Y Kim, J H Kim, Y M Ahn, S Lee
Peanut (PN) and tree nuts (TNs) are common causes of anaphylaxis in Western countries, but no information is available in Korea. To feature clinical characteristics of anaphylaxis caused by PN, TNs, and seeds, a retrospective medical record review was performed in 14 university hospitals in Korea (2009-2013). One hundred and twenty-six cases were identified, with the mean age of 4.9 years. PN, walnut (WN), and pine nut accounted for 32.5%, 41.3%, and 7.1%, respectively. The median values of specific IgE (sIgE) to PN, WN, and pine nut were 10...
March 2017: Allergy
https://www.readbyqxmd.com/read/27765232/identification-of-novel-peptides-from-3-to-10kda-pine-nut-pinus-koraiensis-meal-protein-with-an-exploration-of-the-relationship-between-their-antioxidant-activities-and-secondary-structure
#14
Ruiwen Yang, Xingfang Li, Songyi Lin, Zuoming Zhang, Feng Chen
In the present study, two novel peptides Lys-Trp-Phe-Cys-Thr (KWFCT) and Gln-Trp-Phe-Cys-Thr (QWFCT) were purified and identified from 3 to 10kDa pine nut (Pinus koraiensis) meal protein. Their cytotoxicity and antioxidant activities in vitro were determined. Additionally, pulsed electric field technology, antioxidant activities, and circular dichroism were used together to investigate the relationship between antioxidant activities and secondary structure. The results showed that neither peptide demonstrated cytotoxicity in HepG2 cells...
March 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27698954/korean-pine-nut-oil-replacement-decreases-intestinal-lipid-uptake-while-improves-hepatic-lipid-metabolism-in-mice
#15
Shuang Zhu, Soyoung Park, Yeseo Lim, Sunhye Shin, Sung Nim Han
BACKGROUND/OBJECTIVES: Consumption of pine nut oil (PNO) was shown to reduce weight gain and attenuate hepatic steatosis in mice fed a high-fat diet (HFD). The aim of this study was to examine the effects of PNO on both intestinal and hepatic lipid metabolism in mice fed control or HFD. MATERIALS/METHODS: Five-week-old C57BL/6 mice were fed control diets containing 10% energy fat from either Soybean Oil (SBO) or PNO, or HFD containing 15% energy fat from lard and 30% energy fat from SBO or PNO for 12 weeks...
October 2016: Nutrition Research and Practice
https://www.readbyqxmd.com/read/27664625/determination-of-acrylamide-in-dried-fruits-and-edible-seeds-using-quechers-extraction-and-lc-separation-with-ms-detection
#16
Eleonora Laura De Paola, Giuseppe Montevecchi, Francesca Masino, Davide Garbini, Martino Barbanera, Andrea Antonelli
Acrylamide is a carcinogenic and neurotoxic process contaminant that is generated from food components during heat treatment, while it is absent in raw foodstuffs. Its level in food arouses great concern. A method for acrylamide extraction and determination in dried fruits (dried prunes and raisins) and edible seeds (almonds, hazelnuts, peanuts, pine nuts, pistachios, and walnuts) using a QuEChERS-LC-ESI-MS-Triple Quadrupole approach was set up. Linearity, sensitivity, accuracy, and precision of the method were satisfactory...
February 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27475159/-fake-gemination-in-suffixed-words-and-compounds-in-english-and-german
#17
Sandra Kotzor, Benjamin J Molineaux, Elanor Banks, Aditi Lahiri
In languages with an underlying consonantal length contrast, the most salient acoustic cue differentiating singletons and geminates is duration of closure. When concatenation of identical phonemes through affixation or compounding produces "fake" geminates, these may or may not be realized phonetically as true geminates. English and German no longer have a productive length contrast in consonants, but do allow sequences of identical consonants in certain morphological contexts, e.g., suffixation (green-ness; zahl-los "countless") or compounding (pine nut; Schul-leiter "headmaster")...
July 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27383800/improvement-of-milk-fatty-acid-composition-for-production-of-functional-milk-by-dietary-phytoncide-oil-extracted-from-discarded-pine-nut-cones-pinus-koraiensis-in-holstein-dairy-cows
#18
Min Jeong Kim, U Suk Jung, Seung Woo Jeon, Jae Sung Lee, Won Seob Kim, Sang Bum Lee, Youn Chil Kim, Bae Young Kim, Tao Wang, Hong Gu Lee
This study was conducted to examine the effects of adding phytoncide oil extracted from Korean pine nut cone byproduct to the diet of dairy cows on milk yield and compositions, fatty acid characteristics, complete blood count and stress response. A total of 74 Holstein cows were used for 30 days and divided into two groups. Each group was given a basal diet (C) or an experimental diet containing phytoncide additives at 0.016% (T) in feed. The results showed that phytoncide feeding had no effect on milk yield...
December 2016: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/27289053/pyrolysis-polygeneration-of-pine-nut-shell-quality-of-pyrolysis-products-and-study-on-the-preparation-of-activated-carbon-from-biochar
#19
Dengyu Chen, Xiaojuan Chen, Jun Sun, Zhongcheng Zheng, Kexin Fu
A lab-scale pyrolysis reactor was utilized to investigate the effect of pyrolysis temperature (300-700°C) on the yield, quality, and energy distribution of products issued from the pyrolysis polygeneration of pine nut shells. Afterward, activated carbon was prepared from biochar using the steam activation method. Pyrolysis temperatures ranging from 500 to 600°C were found to be optimal in inducing products with improved properties, such as higher heating values of non-condensable gas, lower water content and elevated heating values of bio-oil, and substantial fixed carbon content and greater specific surface area of biochar...
September 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27211622/pin-p-1-is-a-major-allergen-in-pine-nut-and-the-first-food-allergen-described-in-the-plant-group-of-gymnosperms
#20
Beatriz Cabanillas, Jesus F Crespo, Soheila J Maleki, Julia Rodriguez, Natalija Novak
This study aimed to report the complete sequence of a 2S albumin purified from pine nut and to analyze its allergenic properties. Individual recognition of this protein by serum IgE from pine nut-allergic patients was assessed. IgE cross-linking capacity was analyzed in a basophil activation test. Inhibition of IgE-binding and stability to heating was also assessed. The complete nucleotide sequence was obtained and a phylogenetic study was carried out. 2S albumin from pine nut (registered as Pin p 1.0101) was recognized by IgE of 75% of sera...
November 1, 2016: Food Chemistry
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