LYCOPENE POWDER PRODUCING FROM GAC FRUIT TOWARDS APPLICATIONS IN NUTRACEUTICAL AND COSMETICS

2016 ◽  
pp. 51-56
Author(s):  
Thi Le Thuy Nguyen ◽  
Thanh Sinh Do ◽  
Thi Hoa Tran
Keyword(s):  
Key Words ◽  
Propylene Glycol ◽  
Mass Production ◽  
Toxic Substances ◽  
High Concentration ◽  
Concentration Determination ◽  
Modified Method ◽  
Β Carotene ◽  
Key Words Carotenoids

Backgroud: Gac is a fruit containing many antioxidants, especially lycopene, with high concentration. However the variety and value of products from gac are limited. We introduce a modified method to produce lycopene and others carotenoids from gac oil towards available and safe applications in nutraceutical and cosmetics. Materials and method: We study the extraction with different parameters and limit at the saponification of gac oil using less toxic substances such as ethanol, propylene glycol, postasium hydroxide and sodium chlorid. Results: Concentrations of lycopene and β-carotene determined silmutaneously by UVVis spectrophotometer present that the efficiency reaches 65.07% as 20 g of gac oil is saponified with 8 g KOH 12 mol/L in 120 mins. The purity of product is 89.02%. Conclusions: This process could minimize toxic residue in the powder after the precipitation, filtration and washing. Besides, the method is stable and applicable to the mass production. Key words: Carotenoids, Lycopene, safe extraction, UV Vis silmutaneous concentration determination

scholarly journals Concentration of Bioactive Phenolic Compounds in Olive Mill Wastewater by Direct Contact Membrane Distillation

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1808
Author(s):  
Rosa Tundis ◽  
Carmela Conidi ◽  
Monica R. Loizzo ◽  
Vincenzo Sicari ◽  
Rosa Romeo ◽  
...  
Keyword(s):  
Direct Contact ◽  
High Performance ◽  
Biological Properties ◽  
Membrane Distillation ◽  
Olive Mill Wastewater ◽  
High Concentration ◽  
Direct Contact Membrane Distillation ◽  
Reducing Activity ◽  
Β Carotene ◽  
Olive Mill

Olive mill wastewater (OMW), generated as a by-product of olive oil production, is considered one of the most polluting effluents produced by the agro-food industry, due to its high concentration of organic matter and nutrients. However, OMW is rich in several polyphenols, representing compounds with remarkable biological properties. This study aimed to analyze the chemical profile as well as the antioxidant and anti-obesity properties of concentrated fractions obtained from microfiltered OMW treated by direct contact membrane distillation (DCMD). Ultra-high performance liquid chromatography (UHPLC) analyses were applied to quantify some phenols selected as phytochemical markers. Moreover, α-Amylase, α-glucosidase, and lipase inhibitory activity were investigated together with the antioxidant activity by means of assays, namely β-carotene bleaching, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic) acid (ABTS) diammonium salts, 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, and Ferric Reducing Activity Power (FRAP) tests. MD retentate—which has content of about five times greater of hydroxytyrosol and verbascoside and about 7 times greater of oleuropein than the feed—was more active as an antioxidant in all applied assays. Of interest is the result obtained in the DPPH test (an inhibitory concentration 50% (IC50) of 9.8 μg/mL in comparison to the feed (IC50 of 97.2 μg/mL)) and in the ABTS assay (an IC50 of 0.4 μg/mL in comparison to the feed (IC50 of 1.2 μg/mL)).

Dietary acorns provide a source of gamma-tocopherol to pigs raised extensively

1998 ◽  
Vol 78 (3) ◽  
pp. 441-443 ◽  
Author(s):  
A.I. Rey ◽  
B. Isabel ◽  
R. Cava ◽  
C. J. Lopez-Bote
Keyword(s):  
Key Words ◽  
Alpha Tocopherol ◽  
Longissimus Dorsi ◽  
High Concentration ◽  
Gamma Tocopherol ◽  
Longissimus Dorsi Muscle ◽  
Dorsi Muscle ◽  
Key Words Pig

Pigs raised extensively and fed acorns and grass had a higher concentration of alpha and gamma-tocopherol in longissimus dorsi muscle and microsome extracts than pigs fed in confinement with mixed diets (P < 0.001). This is attributable to the high concentration of alpha-tocopherol in grass (over 200 mg kg−1 DM) and gamma-toco-pherol in acorns (60–70 mg kg−1 DM). Key words: Pig, acorn, gamma-tocopherol, diet

PLANT GROWTH REGULATOR ACTIVITY OF SOLUBLE HUMIC COMPLEXES

1984 ◽  
Vol 64 (2) ◽  
pp. 225-228 ◽  
Author(s):  
G. CACCO ◽  
G. DELL’AGNOLA
Keyword(s):  
Biological Activity ◽  
Plant Growth ◽  
Key Words ◽  
Growth Regulators ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Good Evidence ◽  
High Concentration ◽  
Stem Curvature ◽  
Cytokinin Bioassays

Auxin and cytokinin bioassays were performed to test the biological activity of soluble humic complexes (SHC). "Pea split stem curvature" (auxin test) and "cucumber" tests (cytokinin test) did not show any quantifiable biological activity of SHC. On the contrary, "cress test" and "senescence test" offered good evidence of a hormonal-like activity 100 times lower than that of IAA (10 mg IAA∙g−1 SHC) and 10 times lower than that of N6 BA (100 mg N6 BA∙g−1 SHC). At a high concentration of SHC, toxic effects were evident, indicating the presence of inhibitory substances which counteracted the hormone-like activity of humic complexes. Key words: Plant growth regulators, soluble humic complexes

Dissolved Inorganic Radiocarbon in the Northwest Pacific Continental Margin

Radiocarbon ◽  
2016 ◽  
Vol 58 (3) ◽  
pp. 517-529 ◽  
Author(s):  
Tiantian Ge ◽  
Xuchen Wang ◽  
Jing Zhang ◽  
Chunle Luo ◽  
Yuejun Xue
Keyword(s):  
Pacific Ocean ◽  
Dissolved Inorganic Carbon ◽  
Kuroshio Current ◽  
Northwest Pacific ◽  
Intermediate Water ◽  
High Concentration ◽  
Northwest Pacific Ocean ◽  
Modified Method ◽  
The Northwest Pacific Ocean ◽  
Shelf Region

AbstractThis article presents a modified method for extraction of dissolved inorganic carbon (DIC) from seawater for radiocarbon measurement by accelerator mass spectrometry (AMS). Standard tests indicate that the extraction efficiencies of DIC are >96%, and the respective precisions of Δ14C-DIC and δ13C-DIC analyses are 6‰ and 0.1‰ or better. Using the method, we report Δ14C-DIC profiles collected from the shelf and slope in the East China Sea (ECS) of the northwest Pacific Ocean. Both the DIC concentration and Δ14C-DIC in the shelf and slope regions seem primarily affected by the Kuroshio Current. It is estimated that 54–65% of the bottom water in the shelf region could be from the intrusion of Kuroshio intermediate water, which carries a high concentration and low Δ14C values of DIC, and which influenced the DIC and its 14C signature on the shelf. Compared with the Δ14C-DIC profiles at other sites in the northwest Pacific reported previously, it appears that the Δ14C-DIC distributions are mainly controlled by the major oceanic currents in the region, and large variations in Δ14C-DIC occurred mostly in the upper 800 m of the water column. The similarity of Δ14C-DIC at depth suggests that the deep-water circulation patterns have been relatively stable in the northwest Pacific Ocean in the last 20 yr.

Development of a method to determine carotenoid composition of fresh forages

2008 ◽  
Vol 88 (6) ◽  
pp. 1057-1064 ◽  
Author(s):  
N. Cardinault ◽  
B. Lyan ◽  
M. Doreau ◽  
B. Chauveau ◽  
E. Rock ◽  
...  
Keyword(s):  
Key Words ◽  
Gradient System ◽  
Mountain Meadow ◽  
Coefficients Of Variation ◽  
Carotenoid Composition ◽  
Ruminant Diets ◽  
In Series ◽  
First Time ◽  
Β Carotene

Due to the limited interest in carotenoids in ruminant diets until recently, analyses of forages are often incomplete, focusing mainly on β-carotene and lutein. Carotenoid composition of green forage from middle mountain meadow was analyzed by HPLC after extraction and elimination of chlorophylls by mild saponification. This method of analysis uses two C18 columns in series with a quaternary gradient system. Our method allowed, for the first time, the identification and quantification of several xanthophylls other than lutein (i.e., violaxanthin, antheraxanthin, epilutein) in chlorophyll-free extracts from carotenoid-rich forage. The intra-day (3.5–7.5 %) and inter-day (1.2–3.5 %) coefficients of variation are suitable for routine determination of carotenoids in green forage. This method could also be used in metabolic studies of these micronutrients in ruminants. Key words: Xanthophylls, carotenoids, fresh forage, HPLC

Engineering Example of High Concentration Printing and Dyeing Wastewater Processed by UBF Craft

2011 ◽  
Vol 255-260 ◽  
pp. 2736-2739
Author(s):  
Shi Yuan Huang ◽  
Qiang Huang ◽  
Sheng Bing Chen ◽  
Yuan Yuan Gao
Keyword(s):  
Toxic Substances ◽  
Wastewater Discharge ◽  
Effluent Water ◽  
Dyeing Wastewater ◽  
High Concentration ◽  
Printing And Dyeing Wastewater ◽  
Contact Oxidation ◽  
Grade One ◽  
Biological Contact Oxidation ◽  
Large Flow

The multi-methods of UBF-biological contact oxidation - enhanced coagulation- precipitation - fiber sand filtration has been applied to treatment a dyeing and printing wastewater, because it is with the characteristics of large flow, high CODcr, high chromaticity and toxic substances. The result showed: when the feed wate under the conditions of CODcr, BOD5, SS quality concentrations were 15000mg / L, 250mg / L,> 800mg / L and chromaticity blow 1000 times, effluent water quality can meet grade one of the national integrated wastewater discharge standards (GB8978-1996).

A modified chromic oxide indicator ratio technique for accurate determination of nutrient digestibility

1993 ◽  
Vol 73 (4) ◽  
pp. 1001-1004 ◽  
Author(s):  
Dhanonjoy C. Saha ◽  
Rex L. Gilbreath
Keyword(s):  
Key Words ◽  
Accurate Determination ◽  
Nutrient Digestibility ◽  
Chromic Oxide ◽  
Modified Method ◽  
Fecal Recovery ◽  
Indicator Minerals ◽  
Indicator Ratio ◽  
Chromium Recovery

A modified method for nutrient digestibility determination is described. The method considers analytical chromium recovery in diets and feces, and fecal recovery of dietary chromium used as an indicator (marker) for determining nutrient digestibilities. This method should provide more reliable estimates of nutrient digestibility. Key words: Chromium, digestibility, indicator, minerals, sows

scholarly journals Determination of NH4+in Environmental Water with Interfering Substances Using the Modified Nessler Method

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Heonsang Jeong ◽  
Jongtaek Park ◽  
Hyunook Kim
Keyword(s):  
Polyvinyl Alcohol ◽  
Spectrophotometric Method ◽  
Water Samples ◽  
Essential Element ◽  
Environmental Water ◽  
High Concentration ◽  
Modified Method ◽  
Dispersing Agent ◽  
Treatment Facilities

Nitrogen is an essential element in the environment. If excess nitrogen includingNH4 +is present in water, however, it can result in algae blooming and eventually the destruction of the aquatic ecosystem. Therefore, the determination ofNH4 +in streams, lakes, and effluents of the treatment facilities has long been carried out. The Nessler method is the most common spectrophotometric method to measureNH4 +in water. However, the result of the method becomes inaccurate if there are interfering substances such as Cl2, Cl−, hardness-causing compounds (e.g., Mg2+), and Fe2+in target water samples. In this study, therefore, the traditional Nessler method has been modified to eliminate the effects of interfering substances; the so-called MS was added to water samples. In addition, the polyvinyl alcohol reagent as a dispersing agent was added to water samples to increase the sensitivity and reproducibility of the method. The modified method could successfully analyzeNH4 +of water samples even with the interfering substance at high concentration.

scholarly journals Large-eddy simulation of plume dispersion within regular arrays of cubic buildings

2011 ◽  
Vol 6 (1) ◽  
pp. 79-86
Author(s):  
H. Nakayama ◽  
K. Jurcakova ◽  
H. Nagai
Keyword(s):  
Large Eddy Simulation ◽  
Urban Areas ◽  
Health Hazard ◽  
Critical Threshold ◽  
Plume Dispersion ◽  
Toxic Substances ◽  
High Concentration ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Regular Arrays

Abstract. There is a potential problem that hazardous and flammable materials are accidentally or intentionally released within populated urban areas. For the assessment of human health hazard from toxic substances, the existence of high concentration peaks in a plume should be considered. For the safety analysis of flammable gas, certain critical threshold levels should be evaluated. Therefore, in such a situation, not only average levels but also instantaneous magnitudes of concentration should be accurately predicted. In this study, we perform Large-Eddy Simulation (LES) of plume dispersion within regular arrays of cubic buildings with large obstacle densities and investigate the influence of the building arrangement on the characteristics of mean and fluctuating concentrations.

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