scholarly journals Oil-in-water emulsions stabilised by cellulose ethers: stability, structure and in vitro digestion

2017 ◽  
Vol 8 (4) ◽  
pp. 1547-1557 ◽  
Author(s):  
Jennifer Borreani ◽  
María Espert ◽  
Ana Salvador ◽  
Teresa Sanz ◽  
Amparo Quiles ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
In Vitro Digestion ◽  
Cellulose Ether ◽  
Cellulose Ethers ◽  
Lipid Digestion ◽  
Oil In Water ◽  
Stability Structure

Cellulose ether emulsions have good physical and oxidative stability and can delay in vitro lipid digestion. HMC emulsions inhibit lipolysis more than others and could enhance gastric fullness and satiety.

scholarly journals Bovine Milk-Derived Emulsifiers Increase Triglyceride Absorption in Newborn Formula-Fed Pigs

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 410 ◽  
Author(s):  
Kristine Bach Korsholm Knudsen ◽  
Christine Heerup ◽  
Tine Røngaard Stange Jensen ◽  
Xiaolu Geng ◽  
Nikolaj Drachmann ◽  
...  
Keyword(s):  
Milk Fat ◽  
Bovine Milk ◽  
In Vitro Digestion ◽  
Lipid Absorption ◽  
Lipid Digestion ◽  
Soy Lecithin ◽  
Neonatal Piglets ◽  
Milk Fat Globule Membranes

Efficient lipid digestion in formula-fed infants is required to ensure the availability of fatty acids for normal organ development. Previous studies suggest that the efficiency of lipid digestion may depend on whether lipids are emulsified with soy lecithin or fractions derived from bovine milk. This study, therefore, aimed to determine whether emulsification with bovine milk-derived emulsifiers or soy lecithin (SL) influenced lipid digestion in vitro and in vivo. Lipid digestibility was determined in vitro in oil-in-water emulsions using four different milk-derived emulsifiers or SL, and the ultrastructural appearance of the emulsions was assessed using electron microscopy. Subsequently, selected emulsions were added to a base diet and fed to preterm neonatal piglets. Initially, preterm pigs equipped with an ileostomy were fed experimental formulas for seven days and stoma output was collected quantitatively. Next, lipid absorption kinetics was studied in preterm pigs given pure emulsions. Finally, complete formulas with different emulsions were fed for four days, and the post-bolus plasma triglyceride level was determined. Milk-derived emulsifiers (containing protein and phospholipids from milk fat globule membranes and extracellular vesicles) showed increased effects on fat digestion compared to SL in an in vitro digestion model. Further, milk-derived emulsifiers significantly increased the digestion of triglyceride in the preterm piglet model compared with SL. Ultra-structural images indicated a more regular and smooth surface of fat droplets emulsified with milk-derived emulsifiers relative to SL. We conclude that, relative to SL, milk-derived emulsifiers lead to a different surface ultrastructure on the lipid droplets, and increase lipid digestion.

scholarly journals Structurally Different Dry Bean Matrices Modulate in Vitro Lipid Digestion (FS14-08-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Tiantian Lin ◽  
Cristina Fernandez-Fraguas
Keyword(s):  
Particle Size ◽  
Corn Oil ◽  
Binding Capacity ◽  
Blood Lipid ◽  
In Vitro Digestion ◽  
Water Soluble ◽  
Lipid Digestion ◽  
Binding Ability ◽  
Dry Bean

Abstract Objectives Epidemiological evidence suggests that common beans are hypolipidemic agents and therefore able to alleviate obesity and cardiovascular disease. The observed positive effect of bean consumption on blood lipid levels is mainly attributed to their high content of dietary fiber (DF) and it is linked to the ability of DF to interfere with lipid digestion in different ways. Some proposed mechanisms are related to the physicochemical properties of DF and involve binding of bile acids (BA) which could decrease the rate of lipid digestion and absorption in the duodenum. This study aimed to investigate the effect of bean matrices varying in structure, content and distribution of DF fractions on lipid digestion kinetics in vitro. Methods Structurally different bean matrices obtained by several processing techniques (i.e., hydrothermal, high pressure and mechanical treatments) as well isolated DF fractions were investigated. b-glucan was used as comparison. The viscosity, particle size and water and oil-binding ability of bean matrices were determined. We used dialysis, under duodenal conditions and HPLC analysis to determine BA-binding capacity. A standardized multistage static in vitro digestion protocol was used to assess the effect of bean matrices on the lipolysis rate of extrinsic lipids. Results Beans matrices reduced the extent and rate of digestion of corn oil compared to blank, with the water-soluble DF showing the largest reduction. Hydrothermal-treated beans and bean matrices with larger particle size showed the lowest capacity to retain BA and consequently were less effective at reducing the extent of lipolysis. The lower lipolysis rate observed in specific samples was related to their higher BA-binding. Conclusions Different processing variables generated bean microstructures with different potential to modulate lipid digestion. Overall, processing decreased the ability of bean matrices to delay lipolysis. Isolated bean DF has the potential to control lipolysis depending on DF distribution and BA-binding ability. However, none of the bean matrices reached the levels observed with b-glucan. Funding Sources US Dry Bean Council and Hatch Program (NIFA), USDA.

Flocculation of oil-in-water emulsions stabilised by milk protein ingredients under gastric conditions: Impact on in vitro intestinal lipid digestion

2019 ◽  
Vol 88 ◽  
pp. 272-282 ◽  
Author(s):  
Xin Wang ◽  
Quanquan Lin ◽  
Aiqian Ye ◽  
Jianzhong Han ◽  
Harjinder Singh
Keyword(s):  
Milk Protein ◽  
Lipid Digestion ◽  
Oil In Water

scholarly journals Effect of In Vitro Digestion on Water-in-Oil-in-Water Emulsions Containing Anthocyanins from Grape Skin Powder

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2808 ◽  
Author(s):  
Weili Xu ◽  
Yang Yang ◽  
Sophia Xue ◽  
John Shi ◽  
Loong-Tak Lim ◽  
...  
Keyword(s):  
Small Intestine ◽  
Encapsulation Efficiency ◽  
In Vitro Digestion ◽  
Gastric Digestion ◽  
Grape Skin ◽  
Double Emulsions ◽  
Oil In Water ◽  
Intestinal Digestion ◽  
Droplet Sizes

The effects of in vitro batch digestion on water-in-oil-in-water (W/O/W) double emulsions encapsulated with anthocyanins (ACNs) from grape skin were investigated. The double emulsions exhibited the monomodal distribution (d = 686 ± 25 nm) showing relatively high encapsulation efficiency (87.74 ± 3.12%). After in vitro mouth digestion, the droplet size (d = 771 ± 26 nm) was significantly increased (p < 0.05). The double W1/O/W2 emulsions became a single W1/O emulsion due to proteolysis, which were coalesced together to form big particles with significant increases (p < 0.01) of average droplet sizes (d > 5 µm) after gastric digestion. During intestinal digestion, W1/O droplets were broken to give empty oil droplets and released ACNs in inner water phase, and the average droplet sizes (d < 260 nm) decreased significantly (p < 0.05). Our results indicated that ACNs were effectively protected by W/O/W double emulsions against in vitro mouth digestion and gastric, and were delivered in the simulated small intestine phase.

scholarly journals Influence of lipid type on gastrointestinal fate of oil-in-water emulsions: In vitro digestion study

2015 ◽  
Vol 75 ◽  
pp. 71-78 ◽  
Author(s):  
Ruojie Zhang ◽  
Zipei Zhang ◽  
Hui Zhang ◽  
Eric Andrew Decker ◽  
David Julian McClements
Keyword(s):  
In Vitro Digestion ◽  
Oil In Water

scholarly journals Oil-in-water Pickering emulsions via microfluidization with cellulose nanocrystals: 2. In vitro lipid digestion

2019 ◽  
Vol 96 ◽  
pp. 709-716 ◽  
Author(s):  
Long Bai ◽  
Shanshan Lv ◽  
Wenchao Xiang ◽  
Siqi Huan ◽  
David Julian McClements ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Pickering Emulsions ◽  
Lipid Digestion ◽  
Oil In Water

scholarly journals Sea Buckthorn Oil as a Valuable Source of Bioaccessible Xanthophylls

Nutrients ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 76 ◽  
Author(s):  
Cristina Tudor ◽  
Torsten Bohn ◽  
Mohammed Iddir ◽  
Francisc Vasile Dulf ◽  
Monica Focşan ◽  
...  
Keyword(s):  
In Vitro Digestion ◽  
Sea Buckthorn ◽  
Cholesterol Esterase ◽  
Water Emulsion ◽  
Oil In Water ◽  
Sea Buckthorn Oil ◽  
Oil In Water Emulsion ◽  
Zeaxanthin Dipalmitate ◽  
Β Carotene

Sea buckthorn oil, derived from the fruits of the shrub, also termed seaberry or sandthorn, is without doubt a strikingly rich source of carotenoids, in particular zeaxanthin and β-carotene. In the present study, sea buckthorn oil and an oil-in-water emulsion were subjected to a simulated gastro-intestinal in vitro digestion, with the main focus on xanthophyll bioaccessibility. Zeaxanthin mono- and di-esters were the predominant carotenoids in sea buckthorn oil, with zeaxanthin dipalmitate as the major compound (38.0%). A typical fatty acid profile was found, with palmitic (49.4%), palmitoleic (28.0%), and oleic (11.7%) acids as the dominant fatty acids. Taking into account the high amount of carotenoid esters present in sea buckthorn oil, the use of cholesterol esterase was included in the in vitro digestion protocol. Total carotenoid bioaccessibility was higher for the oil-in-water emulsion (22.5%) compared to sea buckthorn oil (18.0%) and even higher upon the addition of cholesterol esterase (28.0% and 21.2%, respectively). In the case of sea buckthorn oil, of all the free carotenoids, zeaxanthin had the highest bioaccessibility (61.5%), followed by lutein (48.9%), making sea buckthorn oil a potential attractive source of bioaccessible xanthophylls.

The mechanism of lowering cholesterol absorption by calcium studied by using an in vitro digestion model

2016 ◽  
Vol 7 (1) ◽  
pp. 151-163 ◽  
Author(s):  
Liliya Vinarova ◽  
Zahari Vinarov ◽  
Slavka Tcholakova ◽  
Nikolai D. Denkov ◽  
Simeon Stoyanov ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Saturated Fatty Acid ◽  
Serum Cholesterol ◽  
In Vitro Digestion ◽  
Cholesterol Absorption ◽  
Lipid Digestion

Ca2+decreases strongly cholesterol and saturated fatty acid bioaccessibility duringin vitrolipid digestion, explaining the lowering of serum cholesterolin vivo.

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