scholarly journals Nutritional Value of the Chilean Seaweeds Cryptonemia Obovata and Rhodymenia Corallina

2010 ◽  
Vol 5 (10) ◽  
pp. 1934578X1000501
Author(s):  
Jaime Ortiz ◽  
Juan Vivanco ◽  
Paula Jiménez ◽  
Moisés Leiva ◽  
Leslie Ramírez ◽  
...  

Some nutritional components of the edible seaweeds Cryptonemia obovata and Rhodymenia corallina were determined. The amino acid content ranged from 1.0 ± 0.3 to 4174.2 ± 14.2 mg 100g−1 dry wt in C. obovata and between 0.9 ± 0.3 and 2657.0 ± 13.5 mg 100g−1 dry wt in R. corallina. The most abundant fatty acid in C. obovata was palmitic acid, reaching a value of 36.5 ± 0.2%, while in Rhodymenia corallina the main fatty acid was oleic acid, reaching a value of 24.7 ± 0.07%. Both seaweeds showed an important content of EPA (C20:5ω3). In C. obovata,α-tocopherol was the principal tocol (138.5 ± 4.9 mg kg−1 lipid), while in R. corallina, it was γ-tocotrienol (850.3 ± 9.4 mg kg−1 lipid). Furthermore, β-carotene was the main carotenoid pigment found in C. obovata.

HortScience ◽  
2020 ◽  
Vol 55 (5) ◽  
pp. 666-669
Author(s):  
Juan J. Polari ◽  
Louise Ferguson ◽  
Selina C. Wang

Moisture and fat content, fatty acid profile, and volatile terpenes were measured for the first time for ‘Kalehghouchi’, ‘Pete 1’, and ‘Lost Hills’ pistachios grown at two California microclimates: Lost Hills and Parlier. ‘Kalehghouchi’ had the highest moisture content, followed by ‘Pete 1’ and ‘Lost Hills’, respectively. While the moisture content of ‘Kalehghouchi’ was not significantly affected by location, it was lower for ‘Pete 1’ grown at Parlier (40.8 vs. 40.8 g/100 g) and higher for ‘Lost Hill’ grown there (48.2 vs. 45.2 g/100 g). ‘Pete 1’ grown at the Parlier site had a higher fat content compared with ‘Lost Hills’ (47.7 vs. 43.0 g/100 g). ‘Kalehghouchi’ had a lower fat content at Parlier compared with Lost Hills (42.0 vs. 44.9 g/100 g), and ‘Lost Hills’ was unaffected by location. The main fatty acid measured in the pistachio samples was oleic acid (52% to 58%), followed by linoleic (26% to 33%) and palmitic acids (11% to 13%). While oleic acid content of ‘Lost Hills’ and ‘Kalehghouchi’ was higher for pistachios grown in Parlier, no impact of location was observed for ‘Pete 1’. The fatty acid profiles of all three cultivars appeared to be more dependent on genotype and less affected by microclimate. α-pinene (95–1682 ng/kg), limonene (37–741 ng/kg), and α-terpinolene (1–368 ng/kg) were the most abundant volatiles among all the cultivars and locations. Microclimate was the primary factor in determining volatile terpenes concentration in pistachio kernels.


2021 ◽  
pp. 1-10
Author(s):  
M. Kulma ◽  
D. Petříčková ◽  
M. Kurečka ◽  
Z. Kotíková ◽  
J. Táborský ◽  
...  

The fortification of feed is known to be a useful tool to manipulate the nutritional value of insects. This study aimed to reveal the effect of carrot supplement duration on the basic nutrients, fatty acid profile, carotenes, and tocopherols. Jamaican crickets (Gryllus assimilis) were provided with chicken feed supplemented with carrots ad libitum for 0, 3, 7, 14 and 60 days prior to harvest. The supplementation increased the levels of α-carotene and β-carotene in the insects. The content of carotenoids did not significantly differ between groups fed carrot for 14 (α-carotene = 13.7 μg/g DM; β-carotene = 34.6 μg/g DM) and 60 days (α-carotene = 15.2 μg/g DM; β-carotene = 37.2 μg/g DM), suggesting that the capacity of the insects to store carotenes is limited. Some carotenoids (α-carotene = 5.4 μg/g DM; β-carotene = 12.8 μg/g DM) were found in crickets given carrot supplementation for only 3 days prior to harvest. Carrot supplementation affected the fatty acid profile of the insects. Crickets fed carrot for 60 and 14 days contained lower levels of SFA (32.00 and 32.74% of total fatty acids respectively) and higher levels of PUFA (33.06 and 32.49% of total fatty acids respectively) in comparison with insects fed for 0, 3 or 7 days. No influence of carrot supplementation was observed in feed conversion, tocopherols and basic nutrients (proteins, lipids, ash). Conclusively, the paper showed some beneficial effects of carrot supplementation, when the highest levels of carotenoids were reached by 14 and 60 days of carrot provision. Therefore, the whole life supplementation seems to be not necessary to reach the increased content of carotenoids in crickets.


2017 ◽  
Vol 68 (3) ◽  
pp. 207 ◽  
Author(s):  
M. Kaplan ◽  
H. Kale ◽  
K. Karaman ◽  
A. Unlukara

The effect of irrigation and nitrogen fertilizer levels on the crude oil and fatty acid composition of maize cultivars was studied. Three levels of irrigation (50, 75 and 100% of field capacity) and nitrogen (100, 200 and 300 kg·ha-1) were used for treatment groups. After harvest, the crude oils were extracted and fatty acid profiles were determined by Gas Chromatography system. The study was repeated for two years and the interaction effects of fertilizer and irrigation were determined. Our results show that the crude oil content was affected positively by the fertilizer and the irrigation applications. As expected, the most abundant fatty acid was linoleic and the harvest year did not alter it. The highest linoleic acid content value was obtained with a 50% field capacity and 300 kg·ha-1 fertilizer treatment combination. In addition, fatty acid contents varied with the changing of interaction effects except for myristic and palmitic acid. Oleic acid was the second abundant fatty acid in the oil samples and the lowest oleic acid value was obtained with a 50% field capacity and 300 kg·ha-1 fertilizer treatment combination. Oleic acid content tended to increase with 75% field capacity but 100% field capacity treatment decreased in it.


Author(s):  
H. Mendoza ◽  
A. Martel ◽  
M. Jiménez del Río ◽  
G. García Reina

1990 ◽  
Vol 25 (1) ◽  
pp. 75-84 ◽  
Author(s):  
Allen C. Cohen

The phytophagous heteropteran, Lygus hesperus Knight was analyzed to determine the distribution of fatty acids among lipid classes in laboratory-reared adults (newly eclosed and 5 day-post eclosion) and in field-collected adults. Profiles of lipid classes varied with source of the insect (field vs. diet-reared), age and sex. Total lipids (% dry wt.) ranged from 5.3 to 30.3% in field-collected males and 5 day-post eclosion diet reared females, respectively. Except for field males the predominant lipid class was triacylglycerols (up to 90% of the total lipids) with phospholipids generally the second most abundant lipid class. The most abundant fatty acid in all classes and all treatments was oleic acid (C18:l ω 9). There were significant differences between the field collected vs. diet-reared insects with respect to concentrations of linolenic acid (C18:3 ω 3), with this polyunsaturated fatty acid being much more abundant in field-collected insects than in diet-reared ones.


2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Ardiansyah Kurniawan ◽  
Andri Kurniawan ◽  
Yulian Fakhrurrozi

Cempedik fish (Osteochilus spilurus) become high-value river wild fish in East Belitung as consumption fish. Knowledge of the nutritional value of Cempedik Fish is needed to provide information on benefits for human health and the basis of the domestication process. The research was carried out in August - November 2016 with a qualitative and quantitative descriptive method to identify the consumption and preferences of the people, the process of handling fish, the proximate composition and amino acid content of Cempedik Fish. More than 80% of respondents in Gantung and Manggar Subdistricts, East Belitung who know Cempedik Fish say they consume and like it. The handling of this fish takes precedence over the withdrawal of the stomach contents to reduce the bitter taste. Processing is dominated by the frying process. The protein content of Cempedik Fish shows a value of 13.99% in fresh conditions and 62.63% in fried products. The essential amino acids identified are histidine, ISO leucine, leucine, lysine, methionine, phenylalanine, threonine, and valine.


Author(s):  
H. E. Abdel- Mobdy ◽  
H. A. Abdel-Aal ◽  
S. L. Souzan ◽  
A. G. Nassar

The purpose of this study was to figure out catfish meat's chemical composition, mineral content, amino acid composition, and fatty acid profile. Moisture, protein, lipid, and ash content were measured at 71.30%, 19.03%, 8.10%, and 1.5%, respectively. Catfish meat had higher levels of calcium, phosphorus, and iron, with 304.82, 279.45 and 17.03 mg/100 g, respectively. The essential amino acid content was 41.81 g/100g protein. Oleic, linoleic, and palmitic acids were the most common fatty acids present in catfish meat. Oleic acid made up more than a third of the fatty acid content in catfish meat. Because of its high oleic acid content, catfish meat should be considered because it has been linked to a lower risk of cardiovascular disease.


Nutrients ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 503 ◽  
Author(s):  
Anke Müller ◽  
Lisa Schmölz ◽  
Maria Wallert ◽  
Martin Schubert ◽  
Wiebke Schlörmann ◽  
...  

Nut consumption is known for its health benefits, in particular in inflammatory diseases. A possible mechanism for these effects could be their beneficial fatty acid composition. Nuts mainly contain mono- and polyunsaturated fatty acids, which have anti-inflammatory properties. However, studies investigating the effects of nut extracts on inflammatory processes on the molecular level are rare. We therefore prepared oily nut extracts after in vitro digestion and saponification of the fat-soluble constituents. Besides chromatographic analysis, cell culture experiments were performed using murine macrophages (RAW264.7) to study the capacity of different nut extracts (hazelnut, almond, walnut, macadamia, and pistachio) to modulate inflammatory processes. Oleic acid was the main fatty acid in hazelnut, almond, macadamia, and pistachio extracts. Both oily nut extracts and pure oleic acid significantly reduced the LPS-induced expression of iNos, Cox2, Tnfα, Il1β, and Il6 mRNAs. iNos protein expression was down-regulated followed by reduced nitric oxide formation. Thus, nut extracts at concentrations achievable in the digestive tract inhibit the expression and formation of inflammatory mediators in macrophages. Hence, a beneficial contribution of nut consumption to inflammatory diseases can be assumed. We are convinced that these results provide new insights on the molecular mechanisms involved in the health-beneficial effects of nuts.


2014 ◽  
Vol 84 (Supplement 1) ◽  
pp. 25-29 ◽  
Author(s):  
Guangwen Tang

Humans need vitamin A and obtain essential vitamin A by conversion of plant foods rich in provitamin A and/or absorption of preformed vitamin A from foods of animal origin. The determination of the vitamin A value of plant foods rich in provitamin A is important but has challenges. The aim of this paper is to review the progress over last 80 years following the discovery on the conversion of β-carotene to vitamin A and the various techniques including stable isotope technologies that have been developed to determine vitamin A values of plant provitamin A (mainly β-carotene). These include applications from using radioactive β-carotene and vitamin A, depletion-repletion with vitamin A and β-carotene, and measuring postprandial chylomicron fractions after feeding a β-carotene rich diet, to using stable isotopes as tracers to follow the absorption and conversion of plant food provitamin A carotenoids (mainly β-carotene) in humans. These approaches have greatly promoted our understanding of the absorption and conversion of β-carotene to vitamin A. Stable isotope labeled plant foods are useful for determining the overall bioavailability of provitamin A carotenoids from specific foods. Locally obtained plant foods can provide vitamin A and prevent deficiency of vitamin A, a remaining worldwide concern.


2016 ◽  
Vol 5 (10) ◽  
pp. 4972
Author(s):  
Lata Birlangi

The date palm (Phoenix dactylifera L.) is one of mankind’s oldest cultivated plants. The fruit of the date palm is an important crop of the hot arid and semi-arid regions of the world. It has always played a genuine economic and social part in the lives of the people of these areas. The present objective in examining the amino acid content of different varieties of date palm fruits from Middle-East region; is to determine whether its protein could effectively supplement the nutritional value and it is also aimed in finding which variety is rich in number of amino acids. The phytochemical screening revealed the presence of eight essential amino acids and five non-essential amino acids in the date fruits. Among all the date fruit varieties taken as samples for the study, Dabbas cultivar of United Arab Emirates found to exhibit eight types of amino acids which includes five as non-essential ones. Total of thirteen amino acids were detected in the seven date cultivars. Determination of amino acid can serve as a guide to the possible nutritional value.


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