scholarly journals Fatty Acid Profile and Mineral Content of Commercial Table Olives from Turkey

2013 ◽  
Vol 41 (2) ◽  
pp. 518 ◽  
Author(s):  
Vildan UYLASER ◽  
Gökçen YILDIZ
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Saturated Fatty Acids ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Table Olives ◽  
Table Olive ◽  
High Level

In this study, five different types of commercial table olive: Domat, Kalamata, Edremit (green), Edremit (black) and Gemlik, from Turkey, were investigated for the fatty acid composition and mineral content. Fatty acid analyses were performed by capillary gas chromatography. The fatty acid results showed that all table olives characterized by high level of were oleic acid (C18:1, 57.473-72.294%), linoleic acid (C18:2, 7.914-25.279%) and palmitic acid (C16:0, 9.735-16.441%). Moreover, in terms of the unsaturated oil content and a ratio of polyunsaturated fatty acids (PUFA) to saturated fatty acids (SFA) value, Kalamata olives were found to be more advantageous as compared to the other table olive types. The sodium (Na), magnesium (Mg), calcium (Ca), phosphorus (P), iron (Fe) and potassium (K) content of table olives were measured by inductively coupled plasma optical emission spectrometry (ICP-OES). Na was the most concentrated mineral detected (6637.722-20613.666 mg/kg), followed by K (2814.296-3386.520 mg/kg) and Ca (342.595-742.894 mg/kg). Results showed that there are differences among the fatty acid and mineral content of the commercial table olives depending on type.

Determination of proximate composition and fatty acid profiles of Astacus leptodactylus Eschscholtz, 1823 in Turkish freshwater resources

Crustaceana ◽  
2016 ◽  
Vol 89 (10) ◽  
pp. 1135-1147 ◽  
Author(s):  
Abdullah Öksüz ◽  
Yavuz Mazlum
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Saturated Fatty Acids ◽  
Nutrient Content ◽  
Living Environment ◽  
Omega 3 ◽  
Astacus Leptodactylus ◽  
Meat Yield ◽  
Single Fatty Acid ◽  
High Level

This research was conducted to evaluate the nutrient content ofAstacus leptodactylusin various populations in the lakes Iznik and Egirdir, as well as in Hirfanlı Dam Lake and Keban Dam Lake, all in Turkey. Crayfish meat yield ranged from a minimum of 11.3% to a maximum of 16.3% of wet weight in specimens from Keban and Iznik, respectively. Meat yield was significantly different, depending on the living environment. The protein content of the meat ofA. leptodactylusranged from 15.4 to 17.5%. The moisture content of crayfish was significantly lower in the high lipid containing Iznik Lake’s crayfish. Crayfish lipids were poor in saturated fatty acids, but rich in PUFA’s and in particular EPA, DHA and ARA. In all groups, the major saturated fatty acids were palmitic acid, stearic acid and myristic acid. Among the omega-6 fatty acid series, a high level of ARA was observed in crayfish meat.EPA may be considered as the major omega-3 fatty acid in crayfish lipids. There was no single fatty acid indicating regional differences in crayfish specimens.

scholarly journals The Chemical and Nutritional Properties of Processed Fruit Enriched with Algae

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Somayeh Ranjbar-Shamsi ◽  
Anousheh Sharifan ◽  
Mozhgan Emtyazjoo ◽  
Maryam Moslehishad
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Functional Food ◽  
Inductively Coupled Plasma ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Fatty Acid Profiles ◽  
Nutritional Properties ◽  
Inductively Coupled ◽  
Potential Source

Currently, processed fruits (sour fruit and fruit paste) are consumed as one of the most popular goodies in the some countries, and the position of this product in the food basket of Iranian families is gradually becoming important. Algae are an excellent potential source of natural compounds that can be used as a functional food. The aim of this study was to investigate the effect of Sargassum ilicifolium, Ulva lactuca, and Gracilaria cortica algae at different concentrations (1.5 and 3%) on the chemical and nutritional properties of processed fruit formulations. Fatty acid profiles were measured by gas chromatography. Vitamin contents were measured using HPLC. Inductively coupled plasma (ICP) was used to measure minerals. In the fatty acid profile, 21 fatty acids including saturated fatty acids, unsaturated fatty acids, and PUFAs were identified. The predominant fatty acids in samples were palmitic acid, stearic acid, oleic acid, and linoleic acid. E and B1 vitamins varied from 6.19 to 22.63 mg/g and 5.38–19.10 mg/g in sour fruits and fruit paste, respectively. Among the minerals, iodine was at the highest level in all samples (5.06–607.46 mg/g). In conclusion, these seaweeds can be used as a suitable source of fatty acids, minerals, and vitamins in the formulation of functional processed fruits, which are essential for human health.

Proximate and Mineral Composition of Cuttlefish (Sepia sp)

2019 ◽  
pp. 130-137 ◽  
Author(s):  
Andi Santi ◽  
Prof Metusalach ◽  
Djalil Genisha ◽  
Meta Mahendradatta
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Amino Acid ◽  
Amino Acid Analysis ◽  
Mineral Content ◽  
Saturated Fatty Acids ◽  
Sodium Content ◽  
Proximate Analysis ◽  
Trace Minerals ◽  
Mineral Analysis

Cuttlefish as a type of Cephalopoda, as other Cephalopods are thought to also have a large nutritional component. Cuttlefish (Sepia sp) Is a type of cephalopod that is well known and popular with the community. There are approximately 100 cuttlefish species in the world. The proximate, nutrient and mineral analyses were conducted on the head and mantle of cuttlefish (Sepia sp). Proximate analysis showed of cuttlefish bone contained 13,16±0,10 -13,51±0,68% protein, 0,69±0,14% - 0,89±0,14 % ash, 0,77±0,00% - 0,79±0,00% fat, 83,65±0,43% - 84,06±0,08% water and 1,12±0,33% - 1,36±0,97% carbohydrate. Amino acid analysis revealed cuttlefish contained essential and nonessential amino acid with arginine (0.97%) and glutamate (0.81%) was the highest in the head, respectively, while lysine (0.7%) and glutamate (0.7%) was the highest in the mantle, respectively. Lipid of cuttlefish contained high Percentage of Polyunsaturated Fatty Acid (PUFA) with a high content of DHA (17.5–20.5%). The C16:0 and C18:0 were the most abundant saturated fatty acid in the head and mantle. Mineral analysis showed high contents of sodium, phosphorus, potassium and calcium, with sodium content being the highest (1532.7-1610.4 mg/kg). Zinc and copper were the dominant trace minerals in both portions. This study showed that cuttle?sh contain essential nutrients for human good health with high in protein and mineral content. Proximate analysis, nutrition and minerals were carried out on cuttlefish shells (Sepia sp). Amino acid analysis revealed that cuttlefish contained essential and nonessential amino acids with arginine (0.97%) and glutamate (0.81%) each highest in the head, while lysine (0.65%) and glutamate (0.7% ) is the highest in the mantle. each. Cuttlefish lipids contain a high percentage of polyunsaturated fatty acids (PUFA) with high DHA content (17.5-20.5%). C16: 0 and C18: 0 are the most saturated fatty acids in the head and coat. Mineral analysis shows high content of sodium, phosphorus, potassium, and calcium, with the highest sodium content (1532,7-1610,4 mg / kg). Zinc and copper are the dominant trace minerals in both parts. This study shows that cuttlefish contain important nutrients for human health with high protein and mineral content.

Topic: chemical compositions and mineral content of four selected South African herbal teas and the synergistic response of combined teas

2020 ◽  
Vol 122 (9) ◽  
pp. 2769-2785
Author(s):  
Florence Malongane ◽  
Lyndy Joy McGaw ◽  
Fhatuwani Nixwell Mudau
Keyword(s):  
South African ◽  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Colorimetric Assay ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Total Phenolic ◽  
Chemical Compositions ◽  
Content Type ◽  
Rooibos Tea

PurposeThe present study was carried out to determine (1) essential minerals, total polyphenols, total flavonoids, moisture and ash of four selected South African herbal teas and (2) the effect of blending bush tea with other known commercial herbal teas.Design/methodology/approachThe method used to determine moisture and ash contents followed that of the Association of Official Analytical Chemists (AOAC). Nine minerals were analyzed using inductively coupled plasma optical emission spectrometry (ICP-OES). The total phenolic and flavonoid contents were determined by Folin–Ciocalteu assay and aluminum chloride colorimetric assay, respectively.FindingsThe results of the study demonstrated that bush tea had a high ash content of 8.01% and special tea (9.23%), while honeybush (1.96%) and rooibos tea (2.17%) exhibited a low ash percentage. The mineral content was higher in bush tea and special tea than in rooibos tea and honeybush tea except for sodium, which was higher in rooibos tea. The blending of bush tea with special tea improved its potassium content from 22,937.00 mg/kg to 23,379.20 mg/kg. Blending bush tea with rooibos tea at a ratio of 25:75 increased the flavonoid content to 12.21 µg/mL.Research limitations/implicationsThe results of the nutrients composition cannot be generalized as it is influenced by other factors such as soil type and seasons.Social implicationsIncreasing the commercialization of indigenous teas.Originality/valueThe results of the study suggest that bush tea and special tea are nutritionally comparable with South African commercial herbal teas. Thus, the consideration for commercialization of these teas is crucial.

scholarly journals Quality characteristics of extracted oil from the head and gills of Catfish and Titus fish

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Oluseye Oladapo Abiona ◽  
Shola Hezekiah Awojide ◽  
Adebanjo Jacob Anifowose ◽  
Abiodun Odunlami Adegunwa ◽  
Wasiu Bolade Agbaje ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Saturated Fatty Acids ◽  
Quality Characteristics ◽  
Human Consumption ◽  
Total Saturated Fatty Acid ◽  
Scomber Scombrus ◽  
Peroxide Values ◽  
Total Unsaturated Fatty Acid ◽  
High Level

Abstract Background The research was carried out to assess the lipid characteristics of oil extracted from the head and gills of Claris macrocephalus and Scomber scombrus. Results The results confirmed the presence of C16:0, C18:0, C18:1, C18:2, C18:3, C22:6 as the major fatty acids. Titus fish head (TFHD) oil had a total saturated fatty acid (TSFA) of 40.804 ± 0.002% of which C16:0 and C18:0 were the most dominant fatty acids present while the total monounsaturated fatty (TMUFA) acids present in the oil was 33.853 ± 0.001%. The total polyunsaturated fatty acid (TPUFA) content of the TFHD oil sample was found to be 25.368 ± 0.002%. The results revealed that the total unsaturated fatty acid (TUFA) present in the TFHD was higher than the TSFA. The results obtained for Titus fish gills (TFGL) oil sample followed the same trend as observed in the head sample. The results showed that the four (4) oil samples contain high level of palmitic acid (C16:0) and stearic acid (C18:0) both of which are saturated fatty acids (SFA). The main MUFA identified was C18:1 (cis-6) and ranged from 14.120 ± 0.004 to 20.418 ± 0.002% for TFHD, TFGL, CFHD, CFGL and oleic acid (C18:1) ranged from 10.297 ± 0.001 to 11.570 ± 0.003% for TFHD, TFGL, CFHD and CFGL. Conclusions Oils of CFHD and TFHD showed higher peroxide values indicating suitability for human consumption.

scholarly journals Two-Way Characterization of Beekeepers’ Honey According to Botanical Origin on the Basis of Mineral Content Analysis Using ICP-OES Implemented with Multiple Chemometric Tools

Foods ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 210 ◽  
Author(s):  
Artemis Panormitis Louppis ◽  
Ioannis Konstantinos Karabagias ◽  
Chara Papastephanou ◽  
Anastasia Badeka
Keyword(s):  
Content Analysis ◽  
Discriminant Analysis ◽  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Stepwise Discriminant Analysis ◽  
Botanical Origin ◽  
Icp Oes ◽  
Linear Discriminant

Asfaka, fir, flower, forest flowers and orange blossom honeys harvested in the wider area of Hellas by professional beekeepers, were subjected to mineral content analysis using inductively coupled plasma optical emission spectrometry (ICP-OES). The main purpose of this study was to characterize the mineral profile and content of toxic metals such as lead, cadmium and chromium, and investigate whether specific minerals could assist accurately in the botanical origin discrimination with implementation of chemometrics. Twenty-five minerals were identified (Ag, Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Pb, Sb, Se, Si, Ti, Tl, V, Zn) and quantified. Results showed that the mineral content varied significantly (p < 0.05) according to honey botanical origin, whereas lead, cadmium, and chromium contents ranged between 0.05–0.33 mg kg−1, <0.05 mg kg−1, and in the range of <0.12 to 0.39 mg kg−1, respectively. Fir honeys from Aitoloakarnania region showed the highest mineral content (182.13 ± 71.34 mg kg−1), while flower honeys from Samos Island recorded the highest silicon content (16.08 ± 2.94 mg kg−1). Implementation of multivariate analysis of variance (MANOVA), factor analysis (FA), linear discriminant analysis (LDA), and stepwise discriminant analysis (SDA) led to the perfect classification (100%) of these honeys according to botanical origin with the use of Al, As, Ca, Mg, Mn, Ni, Pb, Sb, Si, Zn and total mineral content. However, the higher lead content in the majority of samples than the regulated upper limit (0.10 mg kg−1), sets the need for further improvements of the beekeepers’ practices/strategies for honey production.

Mineral Content as a Tool for the Assessment of Honey Authenticity

2017 ◽  
Vol 100 (4) ◽  
pp. 862-870 ◽  
Author(s):  
Milica Jovetić ◽  
Jelena Trifković ◽  
Dalibor Stanković ◽  
Dragan Manojlović ◽  
Dušanka Milojković-Opsenica
Keyword(s):  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Geographical Origin ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Botanical Origin ◽  
Inductively Coupled ◽  
Acacia Honey ◽  
Regional Origin ◽  
Plasma Optical Emission Spectrometry

Abstract The present work aims to provide a contribution to the overall investigation of European unifloral honeys with regard to authentication according to botanical and geographical origins. The mineral content of 206 monofloral honey samples of five botanical origins from six different regions in Serbia was investigated by inductively coupled plasma optical emission spectrometry. Chemometric techniques were applied for the classification and differentiation of acacia, sunflower, and linden honey according to botanical origin, as well as acacia honey samples according to regional origin. The highest influence on the differentiation of acacia honey samples was the presence of siderophile and chalcophile elements, whereas sunflower and linden honeys were determined by the presence of lithophile elements, indicating their origin from soil. However, due to the different bioaccumulation properties of plants, the presence of elements is not necessarily directly correlated to their presence in soil, which is confirmed by the results of the authentication of geographical origin of acacia honey.

scholarly journals The Pharmacological Evaluation of Flax Seed Oil

2020 ◽  
Vol 3 (05) ◽  
Author(s):  
Derya Duran
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Nitrogen Content ◽  
Total Nitrogen ◽  
Seed Oil ◽  
Saturated Fatty Acids ◽  
Total Nitrogen Content ◽  
Flax Seed ◽  
Omega 3 ◽  
High Level

Flax seed oil is important food and nutrition sources. It has a low content of saturated fatty acids (9% of all the fatty acids), a moderate content of single saturated fatty acids (about 18%) and a high content of unsaturated fatty acids (about 73%). This oil can be used as a nutritional supplement and is significant in respect of containing omega-3 fatty acid, especially a high level of ALA and a low level of omega-6 fatty acids. The protein content of flax seed varies between 20-30%, and it contains a high level of globulin (linin and conlinin) and gluten. The proportion of non-protein nitrogen constitutes 21.7% of the total nitrogen content. The total nitrogen content has been reported as 3.25g/100 grams of seed. Today, flax seed stands out among the functional additives in the food industry due to the presence of α-linolenic acid, lignans and fibers in its content. Among the oils obtained from seeds, flax seed comes into prominence since it has high contents of α-linoleic acid (ALA, 18:3n-3) and lignans. Flax seed contains oil by 35-45%, and 45-52% of it consists of ALA. ALA is classified as omega-3 group fatty acid and has anti-inflammatory, antithrombotic and antiarrhythmic characteristics.

scholarly journals Metal Rod Surfaces after Exposure to Used Cooking Oils

2021 ◽  
Vol 14 (1) ◽  
pp. 355
Author(s):  
Nina Bruun ◽  
Juho Lehmusto ◽  
Jarl Hemming ◽  
Fiseha Tesfaye ◽  
Leena Hupa
Keyword(s):  
Fatty Acids ◽  
Inductively Coupled Plasma ◽  
Water Concentration ◽  
Optical Emission ◽  
Acid Number ◽  
Metal Corrosion ◽  
Emission Spectrometry ◽  
Shipping Industry ◽  
Corrosion Properties ◽  
Cooking Oils

Used cooking oils (UCOs) have a high potential as renewable fuels for the maritime shipping industry. However, their corrosiveness during storage and usage are some of the concerns yet to be investigated for addressing compatibility issues. Thus, the corrosion of steels and copper exposed to the UCOs was studied through the immersion of metal rods for different periods. The changes on the rod surfaces were analyzed with a scanning electron microscope (SEM). After the immersion, the copper concentration dissolved in the bio-oils was measured using inductively coupled plasma-optical emission spectrometry (ICP-OES). The free fatty acids and glycerides were analyzed using gas chromatography with flame ionization detection (GC-FID). The acid number (AN), water concentration, as well as density and kinematic viscosity of the bio-oils were determined with standard methods. The UCOs with the highest water content were corrosive, while the oils with lower water concentrations but higher ANs induced lower corrosion. After mixing two different UCOs, the metal corrosion decreased with an increasing concentration of the oil with lower corrosive properties. The lower corrosion properties were most likely due to the monounsaturated fatty acids, e.g., oleic acid in oils. These acids formed a barrier layer on the rod surfaces, thereby inhibiting the permeation of oxygen and water to the surface. Even adding 0.025 wt% of tert-butylamine decreased the corrosivity of UCO against polished steel rod. The results suggested that mixing several oil batches and adding a suitable inhibitor reduces the potential corrosive properties of UCOs.

scholarly journals Omega-3 on the fly: long-legged fly Machaerium maritimae as a potential source of eicosapentaenoic acid for aquafeeds

2021 ◽  
pp. 1-12
Author(s):  
P.M. Duarte ◽  
E. Maciel ◽  
M. Pinho ◽  
M.R. Domingues ◽  
R. Calado ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Eicosapentaenoic Acid ◽  
Fatty Acid Profile ◽  
Saturated Fatty Acids ◽  
Dry Weight ◽  
Species Variation ◽  
Omega 3 ◽  
Lipid Source ◽  
High Level

The need for more sustainable aquafeeds has prompted the exploration of insects as potential ingredients. However, commonly reared insects are not satisfactory regarding their fatty acid composition, lacking omega-3 long chain polyunsaturated fatty acids (n-3 LC PUFA), important nutrients for marine organisms. In this study, we present in detail the fatty acid profile of the long-legged fly Machaerium maritimae Haliday (Diptera: Dolichopodidae), an amphibiotic insect native to European coastal habitats. Specimens of this fly were collected in Ria de Aveiro coastal lagoon (Portugal) and the fatty acid profile was analysed through gas chromatography coupled with mass spectrometry. Results revealed a remarkably high level of n-3 LC PUFA, (11 μg/mg dry weight, 20% of the fatty acid profile) namely eicosapentaenoic acid, and a low level of saturated fatty acids. This value is higher than what is found in Hermetia illucens (black soldier fly), while comparable to other aquatic insects. We also report the presence of 50 distinct fatty acids, including multiple branched-chain and PUFA, and discuss potential implications of their presence on the ecology of this species. Variation in the fatty acid profile along the landscape is also presented. Our results indicate that M. maritimae can potentially be a high-quality lipid source for marine aquafeeds. Current legislation in Europe allowing the use of insects in aquaculture is restricted to a few selected species, often non-native, however, further research should consider native insects as potential alternatives to current ingredients in aquafeed.

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