Olive oil extraction

Sulfurol, n. sulfocarbon oil (olive oil extracted from marc, esp. with CS2). 

Aqueous simulants — HPLC with UV detection. Olive oil extracted with dilute sodium hydrogen carbonate and the aqueous extract acidified and examined by HPLC Headspace GC with automated sample injection and specific nitrogen detector. Confirmation by GC-MS if required Headspace GC of the polymer dissolved in N,N-dimethylacetamide. 

Bis-derivitisation with fluorescamine and HPLC with fluorescence detection Aqueous simulants — HPLC with fluorescence detection. Olive oil extracted with methanol /water after addition of hexane Aqueous simulants — HPLC with UV detection. Olive oil extracted with 80% aqueous acetonitrile Headspace GC with FID detection and pentane internal standard Aqueous simulants GC. Olive oil extracted with water/ethanol and GC detection... 

Aqueous simulants examined by HPLC with UV detection. Olive oil extracted with distilled water, with determination in the water extract... 

Part 27 Determination of 2,4,6-triamino-1,3,5-triazine in food simulants Aqueous simulants — HPLC with UV detection 230 nm. Olive oil extracted with water/isopropanol... 

Antipyretic activity. Ethanol (50%) extract of the plant, administered intraperito-neally to guinea pigs, was inactive " . Anti-thrombotic effect. Olive oil extract of the fmit, administered intragastrically to male rabbits at a dose of 150 g/kg, was active. Lipid profile was improved with decreased platelet hyperactivity and subendot-helial thrombogenicity and less severe morphological lesion of the endothelium and vascular wall . 

Carcinogenesis inhibition. Fixed oil, applied externally to female mice at a dose of 150 pg/animal, was active vs ultraviolet (UV)-induced tumors . Olive oil extract, administered in the ration of male rats at a... 

Natural fats and oils can be used directly in products, either individually or as mixtures. In many cases, however, it is necessary to modify their properties, particularly their melting characteristics, to make them suitable for particular applications. Therefore, the oils and fats industry has developed several modification processes using enzyme technology. In particular, lipases (and lately cutinases), phospholipases and pectinases can be used for interesterification processes, ester syntheses and in olive-oil extraction. 

The leaves and tops of St. John s wort are taken as a tea, or as an olive oil extract taken internally or applied externally. 

Albarran, A., R. Celis, M.C. Hermosin, A. Lopez-Pineiro, and J. Cornejo (2004). Behaviour of simazine in soils amended with the final residue of the olive-oil extraction process. Chemosphere, 54 717-724. 

Ranalli, A., Malfatti, A. and Cabras, P. (2001) Composition and quality of pressed virgin olive oils extracted with a new enzyme processing aid. J. Food Sci., 66, 592-603. 

Examination of polyol migration from test samples Samples 5, 6, 8 and 9 in the form of pouches were subjected to ten-day testing at 40 °C with the food simulants distilled water, 3% acetic acid, 10% ethanol and olive oil. The three aqueous simulant extracts (1 ml of each) were diluted 1 1 with acetonitrile prior to analysis. Olive oil extracts (5 g) were shaken and extracted with 3 ml of acetonitrile prior to examination, using the same conditions. No evidence was found from the total ion traces to suggest migration of any unreacted polyols under the ten days at 40 °C test condition. 

The earliest evidence of olive oil extraction in Cyprus dates to about 1300 b.c. (9). (Wild olives grew on the island at least as early as 4000 b.c.) An olive press (probably a lever and weight press) found at a Maroni excavation site consisted... 

Figure 6. Flow diagram of olive oil extraction and processing to yield olive oil products and byproducts.

Di Giovacchino, L. (1996) Olive harvesting and olive oil extraction, in Olive Oil (ed D. Boskou), AOCS Press, Champaign, II, pp. 12—51. 

Fedeli, E. (1996) Olive oil extraction technology and preservation, in World Olive Encyclopaedia, International Olive Oil Council, Madrid, pp. 253—291. 

Figure 6 GCxGC-FID chromatograms of an olive oil extract obtained with (A) normal orthogonal and (B) reverse orthogonal approach. The circled spots show 3-methylbutanoic acid and the three alcohols, 1-hexanol, c/s-3-hexenol and trons-2-hexenol. The zones marked by dashed lines delineate mainly non-polar analytes in (A) and polar analytes in (B) [12].

An international agreement on olive oil and table olives (1986) aims for the modernization of olive cultivation, olive oil extraction, and table oUve processing (a) to encourage research and development to elaborate techniques that could (i) modernize olive husbandry and the olive-products industry through technical and scientific planning, (ii) improve the quality of the products obtained... 

According to International agreement on olive oil and table olives (Table 12.2) aims to the modernization of olive cultivation, olive oil extraction, and table olive processing ... 

Chlorophyll a and b, pheophytin a and Z>, and -carotene from olive oil extracts were separated and quantitated on a silica column (A = 409 nm, 430 nm, or 452 nm) using a 98.5/1.5 hexane/IPA mobile phase. Detection limits of 0.5 ng total injected were reported and amounts from 0.1 to 45 pg/g were quantitated by this method [713]. 

Antunes, A.F. dos S. (1978) Use of enzyme preparations in olive oil extraction. Bol Inst. Azeite Produtos Oleaginosa 6, 39-52. 

Gutierrez F, Jimenez B, Ruiz A, Albi MA. Effect of olive ripeness on the oxidative stability of virgin olive oil extracted from the varieties Picual and Hojiblanca and on the different components involved. J Agric Food Chem 1999 47 121-127. 

Valorization of Liquid Effluents from Olive Oil Extraction Activity in the Production of Ceramic Bricks Influence of Conformation Process... 

Clay was supplied by a clay quarry located in Bailen, Jaen (Spain) and was obtained by mixing three types of raw clay in equal parts red, yellow and black clay. Clay was crushed and ground to yield a powder with a particle size suitable to pass through a 150 pm sieve. The waste, olive wastewater and olive oil wastewater were supplied by a local olive oil extraction plant and used directly without any prior pretreatment. The ceramic paste for the extrusion was prepared by adding fresh water (FW) or residue resulting from olive oil extraction (OW or OOW) to the clay in a mixer. The amoimt of added water in the mixer depends on clay plasticity and on its consistency while performing the extrusion. In the present work 22 wt % of FW, OW or OOW was added to the clay. The same value as used at industrial scale for this kind of clay mixture. Extrusion was carried out in a laboratory Venco extruder. Extruded test pieces were dried at room temperature for about 24 h, and then heated in an oven at 110 °C until constant weight for at least 24 h. 

Valorization of Liquid Effluents from Olive Oil Extraction Aetivity... 

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