Showing papers in "Food Chemistry in 2002"

TL;DR: In this paper, the contribution of l-ascorbic acid (AA) to the total antioxidant activity of fruits was investigated by using RP-HPLC, which measured the change of absorbance of the free radical solution at 414 nm in the test reaction mixture following addition of the fruit extract, as compared with AA.

TL;DR: In this article, the potential use of various commercial fibres (carob fibre, inulin and pea fibre), as fibre-enriching agents in breadmaking, is reported.

TL;DR: Mineral content was determined in several brown and red edible marine sea vegetables and red seaweeds and indicated that marine seaweeds contained higher amounts of both macrominerals and trace elements than reported for edible land plants.

TL;DR: The antioxidant and pro-oxidant properties of ascorbic acid and gallic acid were investigated in this paper, which showed that the reducing power of these two compounds increased upon increasing the concentration.

TL;DR: In this article, the antioxidant properties of 90% ethanol extracts of leaves, and 90% methanol extracts of stem bark, pulp and flowers from Indian Laburnum ( Cassia fistula L.) were investigated.

TL;DR: A review about the potential application of biosensor technology in drink and food industries, its current situation and potential is presented.

TL;DR: In this article, the antioxidant properties of oyster mushrooms were investigated and the scavenging effect on hydroxyl free radicals was found to be moderate to high (42.9-81.8%) at 6.4 mg ml−1.

TL;DR: Cultured and wild sea bass may be differentiated using total lipid content, fatty acid proportions and trace mineral compositions and these differences may be attributed to the constituents of the diet of the fish.

TL;DR: It was showed that black bean and pinto bean starches differed significantly from each other, and from the other starches, with respect to the magnitude of interaction between starch chains within the amorphous and crystalline domains.

TL;DR: The distribution of heavy metals in water and fish from Fayoum Governorate (Egypt) was studied in samples collected throughout two successive years (1997/1998 and 1998/1999). Water from Lake Qarun, a private fish farm and Sanhour River was found to contain heavy metals at concentration levels lower than those found in fish from the first two ecosystems as mentioned in this paper.

TL;DR: In this paper, the physicochemical characteristics of gelatin obtained from the skins of black ( Oreochromis mossambicus ) and red ( Oreochemis nilotica ) tilapia was investigated.

TL;DR: In this article, the gallocatechin was isolated from the banana peel extract, which showed strong antioxidant activity and was more abundant in peel than in pulp (29.6 mg/100 g dry wt.).

TL;DR: In this article, physicochemical studies of pomegranate fruits (Punica granatum) variety Taifi, including total seed juice extracted from unripe, half-ripe and fullripe stages are reported.

TL;DR: In this paper, different edible oils, including safflower, sunflower, rapeseed and olive oils, were submitted to oxidation in a convection oven with air circulating at 70°C. Their oxidation process was monitored by Fourier transform infrared spectroscopy by periodically collecting duplicate spectra from films of pure oil between two KBr disks.

TL;DR: In this paper, the antioxidant activity of EESC was investigated and it was shown that EESc acts as a primary antioxidant, with a 50.0% scavenging effect on the hydroxyl radical.

TL;DR: In this paper, the effects of different hydrolysis conditions and different antioxidants on pure flavonoid glycones and aglycones were studied for red spring onion and spinach, and the best results were obtained by refluxing at 80°C for 2 h with 1.2 M HCl in 50% aqueous methanol with addition of 2 mg ascorbic acid as an antioxidant.

TL;DR: In this article, the authors evaluated the properties of oil extracted from hempseeds subjected to microwave treatments and found that microwave treatment improved oil yield, increased carotenoid and other pigment contents and decreased p-anisidine value without significant changes in other properties.

TL;DR: Seasonal changes, occurring during a 1-year period, in mussels (Mytilus galloprovincialis), cultivated in long-line plants in two different Italian sites, one off the northern Adriatic coast and the other in a sea lake along the Central Tyrrhenian coast, were investigated.

TL;DR: In this article, the effects of substitution of soy and barley flours to wheat flours at 5, 10, 15 and 20% levels were carried out to test the effects on organoleptic and nutritional evaluation of the supplemented bread.

TL;DR: In this paper, four leafy vegetables species: Vernonia amygdalina (Bitter leaf), Solanum africana, Amaranthus hybridus (Green tete) and Telfaria occidentalis (Fluted pumpkins) were subjected to proximate analysis and determination of energy values and nutritionally valuable minerals.

TL;DR: It is suggested that ocellate puffer fish skin has potential as an alternative source of collagen for use in various fields, and the yields of acid-solubilized and pepsin- solventized collagens were very high on a dry weight basis.

TL;DR: In this article, a comparative study was conducted to determine the oxidative stability of twelve different edible oils with two different instruments: a differential scanning calorimeter and an oxidative stability index (OSI) instrument.

TL;DR: In this article, the betalain pattern of Hylocereus polyrhizus is reported for the first time and a highly practicable technique is described for the simultaneous isolation of pigment and mucilage from the mesocarp by extraction with water.

TL;DR: In this article, a general method has been developed for determination of the total cyanide content of all cyanogenic plants and foods, including cassava roots and cassava products, flax seed, bamboo shoots and cyanide containing leaves.

TL;DR: In this paper, the physicochemical parameters of 98 samples of Moroccan honeys were analysed; nine parameters were measured, including water content, pH, acidity (free, lactonic, total and lactonic acidity/free acidity ratio), hydroxymethylfurfural, diastase activity and proline.

TL;DR: In this paper, a twin-screw extruder at 90−140°C and 20-50% moisture level was used to extrude Phoenix and CDC-Candle barley.

TL;DR: In this paper, the influence of different irrigation regimes on productivity and quality of olives and table olives was investigated in an intensive monocone orchard of Olea europaea L. cv.

TL;DR: In this paper, a study was conducted to evaluate the antioxidative activity of extracts from different parts of Mengkudu (Morinda citrifolia L.), including leaf, fruit and root.

TL;DR: In this article, the effects of salt-curing, drying and rehydration on muscle proteins in cod (Gadus morhua) were studied during the processing of heavily salted cod or Bacalhau.

TL;DR: In this article, Bovine serum albumin (BSA) was modified by covalent attachment of chlorogenic acid using different concentrations at pH 9. The structural changes were studied using circular dichroism, differential scanning calorimetry (DSC), intrinsic fluorescence, and binding of anilinonaphthalenesulfonic acid.