Effects of high hydrostatic pressure on the functional and rheological properties of the protein fraction extracted from pine nuts.

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 […]

Simultaneous Analysis of Multiple Allergens in Food Products by LC-MS/MS.

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 […]

NUT Co Reactivity‐Acquiring Knowledge for Elimination Recommendations (NUT CRACKER) Study.

BACKGROUND: Ambiguities exist regarding the diagnosis of tree-nut allergy, necessitating either elimination or performance of oral food challenges (OFC). OBJECTIVE: To examine the co-incidences of allergies among tree-nuts and improve diagnostic testing to minimize the need for OFC. METHODS: Eighty three patients prospectively evaluated for walnut, pecan, cashew, pistachio, hazelnut and almond allergy. A history […]

Age-Based Causes and Clinical Characteristics of Immediate-Type Food Allergy in Korean Children.

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 […]

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.

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 […]

Determination of acrylamide in dried fruits and edible seeds using QuEChERS extraction and LC separation with MS detection.

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 […]

Toxic and essential elements in five tree nuts from Hangzhou market, China.

In this study a total of thirty-five tree nut samples of walnut, pecan, pine seed, hickory nut and torreya were obtained from 5 farm product markets in Hangzhou, China and investigated for essential (Cr, Mn, Fe, Mo, Cu, Zn, Se, and Sr) and toxic (Al, As, Cd and Pb) elements by inductively coupled plasma-mass spectroscopy […]