Intake of cookies made with buriti oil (Mauritia flexuosa) improves vitamin A status and lipid profiles in young rats

2016 ◽  
Vol 7 (10) ◽  
pp. 4442-4450 ◽  
Author(s):  
Jailane de Souza Aquino ◽  
Maria Helena de Araújo Vasconcelos ◽  
Débora Catarine Nepomuceno de Pontes Pessoa ◽  
Juliana Késsia Barbosa Soares ◽  
João Paulo de Sousa Prado ◽  
...  

The oil extracted fromMauritia flexuosa(buriti) is rich in vitamin A, tocopherols and unsaturated fatty acids.

2018 ◽  
Vol 68 (4) ◽  
pp. 220 ◽  
Author(s):  
M. L.F. Freitas ◽  
R. C. Chisté ◽  
T. C. Polachini ◽  
L. A.C.Z. Sardella ◽  
C. P.M. Aranha ◽  
...  

This work reports a complete characterization of buriti oil. Physicochemical properties were determined according to AOCS methodologies and thermophysical properties were measured using a controlled stress rheometer and a digital electronic density meter. β-carotene and tocopherol contents were obtained using HPLC systems. Fatty acids and acylglycerol classes were determined using GC and HPSEC systems, respectively, while triacylglycerol composition was estimated using the software PrOleos. Thermal behavior (crystallization and melting) was analyzed using a DSC. The results attested high levels of total carotenoids with β-carotene as the major one; total tocopherols contained α- and β-tocopherols which accounted for 91% of the total; and monounsaturated fatty acids were mainly represented by oleic acid. The results showed close agreement between density and viscosity of buriti and olive oils. The crystallization and melting peaks occurred at -43.06 °C and -2.73 °C, respectively. These properties enable Buriti oil to be recommended as an excellent alternative for enriching foods with bioactive compounds.


2015 ◽  
Vol 37 (1) ◽  
pp. 8
Author(s):  
Susila Sastri

AbstrakProfil lemak darah ikut ditentukan oleh jenis dan proporsi asam lemak dalam minyaksawit dan minyak kelapa yang dikonsumsi. Kandungan asam lemak tak jenuh (ALTJ) danasam lemak jenuh (ALJ) dalam minyak sawit hampir sama banyak, sedangkan minyakkelapa kaya akan asam lemak jenuh rantai sedang (ALJRS) yang mudah dirubah menjadienergi. Tujuan penelitian ini adalah untuk menentukan pengaruh diet tinggi minyak sawitdan minyak kelapa terhadap profil lemak darah tikus putih jantan galur Wistar. Penelitiandilakukan melalui pemberian diet tinggi minyak sawit (DMS) dan diet tinggi minyak kelapa(DMK) terhadap tikus jantan Wistar putih selama 8 minggu adlibitum. Profil lemak darah diukurdengan spektrofotometer. Data diolah secara non-parametrik dengan p<0,05. Hasil penelitianmenunjukkan DMS dan DMK meningkatkan profil lemak darah bermakna dibandingkan kontrol.Kelompok DMK meningkatkan dengan bermakna kolesterol total (p=0,047), HDL-kolesterol(p=0,009) dan rasio HDL-kolesterol/kolesterol total (p=0,009). Kelompok DMS meningkatkantrigliserida (p=0,076) tetapi tidak bermakna, sedangkan fraksi non-HDL-kolesterol meningkatbermakna (p=0,009). Diet tinggi minyak kelapa pada tikus meningkatkan kadar kolesteroltotal dan HDL-kolesterol, sedangkan diet tinggi minyak sawit meningkatkan fraksi non-HDLkolesterol.AbstractBlood lipid profiles were determined by the types and proportion of fatty acids contained bycoconut and palm oil which is consumed. The proportion of unsaturated fatty acids (UFA) andsaturated fatty acids of palm oil is almost balanced, while coconut oil is rich with medium chainsaturated fatty acids (MCSFA), which is easily converted into energy. This study determinedthe effect of consumption of palm oil and coconut oil on blood lipid profiles of male white Wistarrats. This was an experimental study. High palm oil and coconut oil diet were given to male whiteWistar rats ad libitum for eight weeks. Blood lipid profiles were measured by spectrofotometer.The data was analized using nonparametric tests with p<0,05. Results showed that high dietof palm oil and coconut oil altered blood lipid profiles. High coconut oil diet increased thetotal cholesterol (p=0,047), HDL-cholesterol (p=0,009), and HDL-cholesterol/total cholasterol(p=0,009). High palm oil diet increased triglycerides (p=0,076) unsignificantly, whereas thefraction of non-HDL-cholesterol increased significantly (p=0,009). The conclusion of this studywas that high diet of coconut oil in rats increased total cholesterol and HDL-cholesterol, whilethe high diet of palm oil increased non-HDL-cholesterol.


Author(s):  
Naghma Nazrana ◽  
Tejasvi Jain ◽  
Sanjay Verma

The eye is particularly susceptible to oxidative stress as a result of its high oxygen consumption, high concentration of polyunsaturated fatty acids and cumulative exposure to high-energy visible light. This combination of factors leads to the generation of reactive oxygen species that can trigger oxidative damage to ocular tissues. There is evidence that the human consumer should avoid excessive supplementation with carotenoids. Poly-unsaturated fatty acids are linked to eye disease (as well as multiple other chronic diseases) in both positive and negative ways. Dietary poly-unsaturated fatty acids fall into two major groups, i.e., omega-6 (mainly linoleic acid and arachidonic acid) and omega-3 fatty acids, mainly alpha-linolenic acid, eicosapentaenoicacid (EPA) and docosahexaenoic acid (DHA). Vitamin A deficiency is rare in the United States, but it is common among the poor in developing countries. It's estimated that approximately 250,000 to 500,000 malnourished children worldwide become blind each year due to vitamin A deficiency that could have been prevented with a proper diet. A lack of vitamin A causes the cornea to become very dry, leading to clouding of the front of the eye, corneal ulcers and vision loss. Vitamin A deficiency also causes damage to the retina, which also contributes to blindness. Keywords: Vitamin A, DHA, Glaucoma, retinopathy


2021 ◽  
Vol 12 (2) ◽  
Author(s):  
L Shevchenko ◽  
◽  
V Mykhalska ◽  

One of the key issues in the production of high-quality, biologically complete milk is to provide cows with a sufficient amount of biologically active substances, including vitamin A and its precursor β-carotene. One of the ways to enrich milk with vitamin A and carotenoids is feeding cows with natural feed additives, including vitaton containing up to 10% trans-β-carotene, which can be converted into vitamin A, as well as exhibit antioxidant, immunostimulating, and anticarcinogenic effects in the body. Vitaton is the biomass of fungi Blakeslea trispora TKST strain, a product of microbial synthesis obtained by cultivating the producer on the waste of starch and molasses production. In terms of sanitation, the biomass of the fungi Bl. trispora is safe for animals, since the main condition for its production is sterility, excluding any microorganisms entering the fermentation medium. Besides, after the end of fermentation, the temperature of the medium is raised to 65–70 °C in the fermenter that destroys the β-carotene producer itself. We conducted research on cows of the Ukrainian black and white dairy breed, which were fed with vitaton, in conditions of “Kuibysheve” ALLC of the Poltava region. The introduction of vitaton into the cows’ diet contributes to the increase of the milk fat content by an average of 0.26% and enhances the phospholipid synthesis in the mammary gland by 1.8 times. Vitaton as a biologically active additive did not affect the ratio of total saturated to unsaturated fatty acids in bovine milk but stimulated the formation and inclusion of two unsaturated fatty acids into the milk fat, namely nonadecanoic and α-linolenic, against the background of the disappearance of the arachidonic acid peak in the chromatogram. Changes in the fatty acid composition of milk fat obtained from cows fed with the vitaton as a source of β-carotene indicate the effect of β-carotene and other biologically active components contained in vitaton on milk lipid synthesis.


1978 ◽  
Vol 234 (5) ◽  
pp. E511
Author(s):  
M Singh ◽  
V N Singh

Feeding large doses (30,000 IU/100 g body wt per day) of vitamin A to young rats for 2 days produced fatty liver, caused a stimulation of oxidation and esterification of [1-14C]palmitate by liver slices, and increased the activity of hepatic palmitoyl-CoA synthetase. Under similar conditions, however, release of hepatic triglycerides into the plasma, as judged from the post-Triton triglyceridemia, remained unaffected. It is indicated by the present findings that excessive intake of vitamin A produces fatty liver by stimulating the synthesis of triglycerides in liver without affecting the rate of secretion of hepatic triglycerides. An involvement of altered oxidation of fatty acids in the liver can also be ruled out because in hypervitaminosis A this process is increased rather than decreased as required for fatty liver production.


2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Muhammad Ajmal ◽  
Muhammad Nadeem ◽  
Muhammad Imran ◽  
Zarina Mushtaq ◽  
Muhammad Haseeb Ahmad ◽  
...  

Abstract Background In developing and developed countries, several versions of safe and shelf-stable Ultra High Temperature, UHT-treated products are manufactured. Terminologies and formulations of UHT-treated tea whitener, milk and dairy drink considerably vary. Comprehensive studies have been performed on UHT-treated milk; however, fatty acids compositional changes and oxidation status of UHT-treated tea whitener and dairy drink at different storage intervals have not been reported in literature. Methods UHT-treated tea whitener, milk and dairy drink samples (450 each) of the same manufacturing date were purchased from the market and stored at ambient temperature (25-30 °C) for 90 days. At the time of collection, all the samples were only one week old. Samples of UHT-treated tea whitener, milk and dairy drink were regarded as treatments and every treatment was replicated five times. Chemical composition, fatty acid profile, 2, 2-Diphenyl-1-picrylhydrazyle (DPPH) radical scavenging activity, total antioxidant activity, reducing power, antioxidant activity in linoleic acid system and induction period were determined at 0, 45 and 90 days of storage. Results Fat content in freshly collected samples of UHT treated-tea whitener, milk and dairy drink were 6 and 3.5%. UHT treated milk had highest total antioxidant capacity, antioxidant activity in linoleic acid and 2, 2-Diphenyl-1-picrylhydrazyle (DPPH) free radical scavenging activity followed by UHT tea whitener and dairy drink. In freshly collected samples of UHT-treated milk, concentrations vitamin A and E were 0.46 μg/100 g and 0.63 mg/100 g, respectively. UHT-treated tea whitener had the lowest concentrations of vitamin A and E. With the progression of storage period, amount of vitamin A and E decreased. In freshly collected samples, amount of short, medium and unsaturated fatty acids in UHT-treated milk were 10.54, 59.71 and 27.44%, respectively. After 45 days of storage of UHT-treated milk, the loss of short, medium and unsaturated fatty acid was 7%, 7.1 and 5.8%, respectively. After 90 days of storage of UHT-treated milk, the loss of short, medium and unsaturated fatty acid was 8.53, 13.51 and 11.88%, accordingly. After 45 days of storage of UHT-treated tea whitener, the loss of medium and unsaturated fatty acid was 1.6 and 0.99%, respectively. After 90 days of storage, the loss of medium and unsaturated fatty acids were 8.2 and 6.6%, respectively. The induction period of fresh UHT-treated tea whitener, milk and dairy drink was 15.67, .74 and 7.27 h. Strong correlations were recorded between induction period and peroxide value of UHT-treated products. Conclusion This investigation disclosed that UHT-treated tea whitener had 6% fat content with no short-chain fatty acids. Antioxidant capacity of UHT-treated milk was higher than dairy drink and tea whitener. Due to the presence of partially hydrogenated fat, oxidative stability of UHT-treated tea whitener was better than UHT-treated milk and dairy drink. Vitamin A and E was not found in UHT-treated tea whitener. For the anticipation of oxidative stability of UHT-treated milk, dairy drink and tea whitener, induction period/ Rancimat method can be used.


Pathogens ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 98 ◽  
Author(s):  
Yara Faustino Pereira ◽  
Maria do Socorro Costa ◽  
Saulo Relison Tintino ◽  
Janaína Esmeraldo Rocha ◽  
Fábio Fernandes Galvão Rodrigues ◽  
...  

Mauritia flexuosa (buriti) is a typical Brazilian palm tree found in swampy regions with many plant forms. The fruit has various purposes with the pulps to the seeds being used for ice creams, sweets, creams, jellies, liqueurs, and vitamin production. A physicochemical characterization of the fixed pulp oil and its antibacterial and aminoglycoside antibiotic modifying activity against Gram-positive and Gram-negative multiresistant bacterial strains were performed using broth microdilution assays. Physical properties, such as moisture, pH, acidity, peroxide index, relative density, and refractive index, indicated oil stability and chemical quality. In the GC/MS chemical composition analysis, a high content of unsaturated fatty acids (89.81%) in relation to saturated fatty acids (10.19%) was observed. Oleic acid (89.81%) was the main fatty acid identified. In the antibacterial test, the fixed oil obtained the Minimum Inhibitory Concentration (MIC) ≥ 1024 μg/mL for all standard and multiresistant bacterial strains. The synergic effect of fixed pulp oil combined was observed only in Staphylococcus aureus SA–10, with an MIC reduction of the gentamicin and amikacin by 40.00% and 60.55%, respectively. The data indicates the M. flexuosa fixed oil as a valuable source of oleic acid and modulator of aminoglycoside activity.


2018 ◽  
Vol 69 (4) ◽  
pp. 282 ◽  
Author(s):  
P. Speranza ◽  
K. M.M. Leão ◽  
T. S. Narciso Gomes ◽  
L. V.C. Reis ◽  
A. P. Rodrigues ◽  
...  

Although Amazonian oils present great potential for various applications, they have not been extensively explored for commercial use. In this study, the effects of enzymatic interesterification of buriti oil in relation to its triacylglycerol composition, regiospecific distribution of fatty acids, and minority compounds were evaluated. The results indicated that the lipase used in the reaction showed higher specificity for oleic acid and the sn-1 and sn-3 positions of triacylglycerol, generating more unsaturated structured lipids. There were increases of 11% and 12.5% in unsaturated-unsaturated-unsaturated triacylglycerol types and reductions of 12.1% and 16.2% in saturated-unsaturated-unsaturated triacylglycerol types after 6 and 24 hours of reaction, respectively. At 24 h of reaction, the structured lipid formed was totally unsaturated at the three triacylglycerol positions. In addition, as the reaction conditions were mild, the carotenoids and phenolic compounds were maintained in the structured lipids. The results indicate that the enzymatic interesterification can be an alternative to produce structured lipids with new functionalities, and diversify the application of this oil from the Amazon.


2015 ◽  
Vol 46 (1) ◽  
pp. 7-13 ◽  
Author(s):  
Maria C. Medeiros ◽  
Jailane S. Aquino ◽  
Juliana Soares ◽  
Edigleide B. Figueiroa ◽  
Hanni M. Mesquita ◽  
...  

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