Bioactive properties and chemical composition of six walnut (Juglans regia L.) cultivars
The chemical composition; antioxidant potential and antimicrobial activity were studied in six walnuts (Juglans regia L.) cultivars (cv. Franquette; Lara; Marbot; Mayette; Mellanaise and Parisienne) produced in Portugal. Concerning their chemical composition the main constituent of fruits was fat ranging from 78.83% to 82.14%; being the nutritional value around 720kcal per 100g of fruits. Linoleic […]
The effect of walnut intake on factors related to prostate and vascular health in older men
BACKGROUND: Tocopherols may protect against prostate cancer and cardiovascular disease (CVD). METHODS: We assessed the effect of walnuts; which are rich in tocopherols; on markers of prostate and vascular health in men at risk for prostate cancer. We conducted an 8-week walnut supplement study to examine effects of walnuts on serum tocopherols and prostate specific […]
Walnut allergens.
Substituting walnuts for monounsaturated fat improves the serum lipid profile of hypercholesterolemic men and women in Spain.
BACKGROUND: It has been reported that walnuts reduce serum cholesterol levels in normal young men. OBJECTIVE: To assess the acceptability of walnuts and their effects on serum lipid levels and low-density lipoprotein (LDL) oxidizability in free-living hypercholesterolemic persons. DESIGN: Randomized; crossover feeding trial. SETTING: Lipid clinic at a university hospital. PATIENTS: 55 men and women […]
Including walnuts in a low fat/modified fat diet improves hdl cholesterol-to-total cholesterol ratios in patients with type 2 diabetes
OBJECTIVE: The aim of this study was to examine the effect of a moderate-fat diet inclusive of walnuts on blood lipid profiles in patients with type 2 diabetes. RESEARCH DESIGN AND METHODS: This was a parallel randomized controlled trial comparing three dietary advice groups each with 30% energy as fat: low fat; modified low fat; […]
Sensory evaluation of walnut: an interlaboratory study
This work summarizes an interlaboratory study on full sensory profiling designed with the aim of finding some key attributes relevant to describe the sensory quality of walnuts. The study compared descriptive sensory profiling by different laboratories in different countries (Spain, France and Italy) Three trained panels in those European countries in the characterization of walnuts […]
Fatty acid and tocopherol contents and oxidative stability of walnut oils
Validation of a food-frequency questionnaire for measurement of nutrient intake in a dietary intervention study
OBJECTIVE: To validate a 171-item semi-quantitative food-frequency questionnaire (FFQ) for measurement of nutrient intake in an intervention trial based on walnut supplementation. DESIGN AND SETTING: Free-living adults from Southern California were randomly assigned to either an intervention (walnut-supplemented) or a control diet. The prescribed 6-month intervention was > or = 28 g of walnuts per […]
Chemical composition of walnuts (Juglans regia L.) grown in New Zealand
Walnuts (Juglans regia L.) were collected during the 1997 harvest from 12 different cultivars of trees grown in a replicated trial in an experimental orchard at Lincoln University. Two US commercial cultivars (Tehama and Vina); three European commercial cultivars (Esterhazy; G139; G120) and eight New Zealand selections (Rex; Dublin's Glory; Meyric; Stanley; 150; 151; 153) […]
Effect of walnuts on serum lipid levels and blood pressure in normal men.
BACKGROUND. In a recent six-year follow-up study; we found that frequent consumption of nuts was associated with a reduced risk of ischemic heart disease. To explore possible explanations for this finding; we studied the effects of nut consumption on serum lipids and blood pressure. METHODS. We randomly placed 18 healthy men on two mixed natural […]