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Research Article *Corresponding author Cristina M. Rosell, Institute of Agrochemistry and Food Technology (IATA-CSIC), Avenida Agustin Escardino, 7, Effects of Paterna 46980, Valencia, Spain, Tel: 34-96-3900022; Fax: 34-96-36366301; Email: Submitted: 09 March 2017 Glycosiltranferase Modified Accepted: 15 May 2017 Published: 16 May 2017 ISSN: 2379-089X and Alfa and Beta Copyright © 2017 Rosell et al. on Plasma OPEN ACCESS Keywords and Lipids Metabolism in Mice • Starch • Cyclodextrin Angela Dura1,2, Wallace Yokoyama2, and Cristina M. Rosell1* • Metabolic effect • Lipids 1Institute of Agrochemistry and Food Technology (IATA-CSIC), Avenida Agustin Escardino, Spain 2U.S. Department of Agriculture, Processed Foods Research, Agricultural Research Service, USA

Abstract The potential functional and nutritional benefits of granular starch treated with cyclodextrin glycosyltransferase (CGTase) and the released cyclodextrins (CDs) were explored in in vivo studies. The metabolic effects of diets in the C57BL/6J mouse containing native and enzymatically modified by CGTase with or without hydrolysis products were studied. The hydrolysis products were oligosaccharides and CDs, mainly b-CD. Blood glucose concentration at 2 hours was higher suggesting that enzymatically treated containing CDs slowed digestion resulting in a longer period of absorption and consequently higher blood glucose levels at the later times. The with CDs tended to increase HDL- levels while decreasing VLDL-cholesterol levels. The CGTase modified starches lowered total and cholesterol ester values in liver and decreased fecal fat extraction. The inclusion of CGTase modified granular starches in the presence of their hydrolysis products may be useful to prevent obesity and other related metabolic diseases, offering an alternative healthy ingredient to the .

ABBREVIATIONS have focused on starch digestibility, glycemic response and metabolic effects based on a starch’s glycemic index (GI), relating CGTase: Cyclodextrin glycosyltransferase; CDs: cyclodextrins; slow digestible and resistant starch in carbohydrate matrices to HDL: High Density Lipoprotein; VDL: Very Low Density Lipoprotein; LDL: Low Density Lipoprotein; CGT-W: Washed been studied for their possible healthy effect. Particularly, they Enzymatically Treated Corn Starch; CGT-NW: Enzymatically havelow GI been foods. proposed Furthermore, to increase enzymatically resistant modified starch content starches when has Treated Corn Starch Containing the Hydrolysis Products; GTT: treated with pullulanase [3], to increase the amount of slowly Glucose Tolerance Test. INTRODUCTION digested starch when using β-, transglucosidase and [5].maltogenic α-amylase treatment [4] or to reduce postpandrial leading to porous structures with higher adsorption ability [1]. In glycemic response in rats by α-amylase treatment in corn starch fact,Granular they have starches been used can as be carriers effectively for providing modified protection by of Cyclodextrin glycosyltransferase (CGTase) is an endoenzyme that catalyzes three transglycosylation reactions: cyclization, starches have stimulated interest owing to their potential to modulateminerals, vitamins, starch digestion, flavors and glycemic lipids [2]. response, Enzymatically and plasma modified and glycosidic bonds of starch molecules. The major activity is coupling, and disproportionation by cleaving interior α-1,4 liver lipids by interactions with fatty acids and cholesterol and/or cyclization leading to the formation of non-reducing cyclic bile acids in the intestinal lumen. Most in vivo and in vitro studies oligosaccharides or cyclodextrins (CDs) [6]. The main types

Cite this article: Dura A, Yokoyama W, Rosell CM (2017) Effects of Cyclodextrin Glycosiltranferase Modified Starch and Alfa and Beta Cyclodextrins on Plasma Glucose and Lipids Metabolism in Mice. J Drug Des Res 4(5): 1051. Rosell et al. (2017) Email:

Central Bringing Excellence in Open Access CDS and oligosaccharides quantification high performance anion exchange areof CDs arranged are α-, with β-, andan outer γ-CDs hydrophilic consisting surface of six, that seven, makes and them eight Oligosaccharides and CDs in freeze-dried hydrolysates were solubleglucose monomers in water and in a acyclic hydrophobic configuration, cavity respectively that facilitates [7]. CDs the formation of complexes with a wide variety of hydrophobic guest molecules. Many water insoluble organic molecules have been analyzed by HPAEC using a CarboPac PA-100 column (250 mm incorporated and solubilized by complex formation and found × 4 mm) for separation and coupled to a pulsed amperometric uses in pharmaceutical, food, cosmetics, analytical chemistry, detector (Dionex, Sunnyvale, CA). TheH flowNaO rate), and was D (water),1.0 mL/min the agriculture, and biotechnology [8]. CDs may form complexes and the injection volume was 10 μL. A ternary3 gradient was used: A (water), B (1 M NaOH), C (1 M C2 2 reported to reduce cholesterol availability in a wide variety of following running profile was applied: time zero, 46.25% A, 5% with fatty acids and emulsifiers, in fact, β-cyclodextrin has been foods [9]. B, 2.5% C, 46.25% D; 25 min, 42.5% A, 5% B, 10% C, 42.5% D; 1 CGTase is also a useful for modifying the structure min, 35% A, 15% B, 15% C, 35% D; 3 min, 33% A, 15% B, 19% C, of granular starch leading to surface pores, which number quantitate33% D; 5 min, each 28.5% compound. A, 15% Samples B, 28% were C, 28.5% analyzed D; 1.5 in min, duplicate. 18.5% and size can be modulated by controlling the level of enzyme A, 15% B, 48% C, 18.5% D. Standards were used to identify and Mice and diets [1]. Resulting porous starches showed altered technological properties like pasting and thermal behavior. Furthermore, those starch properties could be changed when the released Twenty four male C57BL/6J mice were purchased from hydrolysis products are kept together to the starch structure Jacksonº Laboratories (Bar Harbor, Me, USA). The mice were housed individually in an environmentally controlled room (20- relation to starch digestion, absorption and metabolic effects Mice were acclimatized and given ad libitum access to water 22 C, 60% relative humidity, 12 h alternating light: dark cycle). have[10]. never Nevertheless, been attempted, enzymatic despite modification the complexing by CGTase ability and of the its and mouse chow diet (LabDiet, PMI International, Redwood, cyclodextrins. Therefore, the aim of this study was to investigate and compare the metabolic effects of high fat diets in the CA, USA; protein, 239 g/kg; fat, 50 g/kg; non-nitrogenous substances, 487 g/kg; crude fiber, 51 g/kg; ash, 70 g/kg; energy, corn starch by CGTase and also the possible contribution of the healthy maintenance) for one week prior to the initiation of the 17 MJ/kg; and sufficient amounts of minerals and vitamins for cyclodextrinC57BL/6J mouse released containing from the native enzymatic and enzymatically action. modified experimental diets. Mice were weighed and randomized into three groups of eight mice and fed for two months. The control MATERIALS AND METHODS group was fed native corn starch (N) and the other two groups of Corn starch samples were generously supplied by HuiciLeidan (Navarra, Spain). Cyclodextrin glycosyltransferase (CGTase, EC samples (Table 1). Mice were fed ad libitum with high fat (HF) mice were fed either CGT-W or CGT-NW enzymatically modified ® 3.0 L, declared activity 3KNU/mL product) diets containing 17% of energy as protein, 37% as carbohydrate, 2.4.1.19,Analytical (Toruzyme grade reagents were purchased from Sigma-Aldrich 47% as fat with 0.1% cholesterol and 5% microcrystalline (Madrid,of food grade Spain). was provided by Novozymes (Bagsværd, Denmark). cellulose (MCC; Dyets Inc. Bethlehem, PA). Sample preparation approvedBody weights by the were Animal recorded Care and weekly Use and Committee, food intake Western was Regionalmonitored Research twice per Center, week. USDA, The study Albany, protocol, CA, USA. #P- 09–04, was

The CGTase modification ofsodiumphosphate corn starch has beenbuffer previously at pH 6.0. Metabolic effect of the diet described by Dura et al. [11]. Briefly, corn starch (10.0 g) was The enzyme treated starches were prepared by adding CGTase The glucose tolerance test (GTT) was administered 1 week suspended in 50 mL of 20 mM before the end of the feeding study. The mice were fasted for suspension was placed in a shaking water bath at 50º (0.32 U of CGTase /10 g starch) to the starch suspension. The 50 mL of water was added to the suspension and homogenized gavage. Capillary blood was taken from the tail vein at 0, 15, 30, with a PolytronUltraturrax homogenizer IKA-T18 (IKAC for works, 48h. 3 h before administration of glucose (2 g/kg body weight) by Wilmington, DE, USA) for 1 min at speed 3. Samples were Ultrameter (LifeScan Inc., Fremont, CA, USA). g ºC. The starch pellets 60, and 120 min and glucose was determined using a One Touch were washed with 50 mL of water and centrifuged again using For the plasma and adipose tissue collection, mice were feed thecentrifuged conditions for described 15 min atabove. 7,000× Supernatants at 4 were pooled and boiled in a water bath for 10 min to inactivate the enzyme. Two cardiacdeprived puncture for 12 with h and syringes anesthetized previously with rinsed Isoflurane with potassium (Phoenix enzymatically treated corn starches were prepared. One sample Pharmaceutical, St. Joseph, MO, USA). Blood was collected by was the washed enzymatically treated corn starch (CGT-W) and ºC. Epididymal and in the other the hydrolysis products were added back (CGT-NW) g subcutaneousEDTA solution adipose (15% w/v). tissues The were plasma collected, was separated weighed, after and immediatelycentrifugation frozen at 2000 in liquid × fornitrogen 30 min for atanalysis. 4 ºC for further analyses. toNative assess corn the starch role of (N) the without water solubletreatment hydrolysis was used products. as the control Both Plasma lipoprotein cholesterol was determined by samplessample. were freeze-dried and kept at 4 separation of the lipoprotein particles by HPLC size-exclusion

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Central Bringing Excellence in Open Access chromatography with post-column colorimetric detection by enzymatic cholesterol oxidase reagent as previously described no difference in kidney weight due to diet changes, which wasfor identification expected since of the potentially kidney harmfuldoes not effects. participate There in was fat or carbohydrate metabolism, and the similar weights were by GermanFat was et extracted al. [12]. from the liver with hexane: isopropanol indicative of healthy animals. No differences in liver weight among all groups were observed, following the pattern of the by(3:2) Hong using et a al. high [13]. pressure Hepatic and triglycerides, temperature total automated cholesterol, extractor and body weight, indicating an adequate physiological response of free(ASE cholesterol200, Dionex wereCorp., determinedSunnyvale, CA) by as enzymatic described colorimetric previously the organism [15]. Therefore, considering that all diets were high assays using commercial kits (Genzyme Diagnostics PEI Inc., PE, fat, differences among type of starch in the diet did not affect Canada, Roche Diagnostics, Indianapolis, IN, and Wako Chemicals, liver weight and subsequent weight gain, which only seems to be Richmond, VA). affected when comparing diets with different levels of fat [16]. Total lipid content was determined in the feces, which Only the weight of epididymal adipose from mice fed CGT-W were collected during the last 3 consecutive days of the feeding tended to be higher when compared to the other two diets (Table period and were stored at -80ºC. Fecal total lipid contents were

Dionex Corp., Sunnyvale, CA) as described elsewhere [13]. 2). determined gravimetrically after solvent extraction (ASE 200, STATISTICAL ANALYSIS 0.018 0.016 Experimental data were subjected to analysis of variance 0.014 0.012 0.01 R² = 0.9611 F(ANOVA) values, multipleusing Statgraphics sample comparisons Centurion wereXV software also performed (Bitstream, by Cambridge, N). When analysis of variance indicated significant 0.008 0.006 Glucose (mM) Glucose Fisher’s least significant differences (LSD) test to differentiate 0.004 meansRESULTS with 95%AND confidence. DISCUSSION 0.002 0 CDs and oligosaccharides quantification by High 0 1 2 3 4 5 6 Nº Glucose units Performance Anion Exchange Chromatography

Oligosaccharide and CD composition of the CGTase treated Figure 1 Contents of glucose, maltose, maltotriose, maltopentaose, -1 of starch in CGT-NW products in the treated starches. As expected, there were no samples. α-cyclodextrin and β-cyclodextrin in mg 100 g detectablestarches were oligosaccharides analyzed to confirmor CDs neither the existence in native of starch hydrolysis and

Table 1: Composition of experimental diets. washing. In the case of CGT-NW sample, hydrolysis products wereCGT-W, kept confirming and the the presence removal ofof oligosaccharidesthe hydrolysis products as glucose, after Diet type maltose, maltotriose, maltotetraose andmaltopentaose was Ingredient N CGT-W CGT-NW detected (Figure 1). It was observed that the molar ratio of Lard Fat glucose, maltose, maltotriose, maltotetraose, and maltopentaose Soybean Oil linearly decreased with increasing molecular weight. Regarding 225 225 225 Cholesterol 250.8 250.8 250.8 MCC* 50 50 50 cyclodextrins production, although the most common CDs are α-, CGT-W corn starch 0 0 β-, and γ-CD [14], only α-CD (3.88 mg/100 g starch) and β-CD CGT-NW corn starch 0 0 and(6.04 cyclizationmg/100 g starch) reactions, were produceextracted and oligosaccharides quantified. Results with 400 N Corn Starch 0 0 differentconfirmed degreesthat CGTases, of polymerization in addition to catalyze through transglycosylation hydrolysis or 400 disproportionation [6]. Casein 400 Sucrose Effect of CGTase modified starch and CDs on body 200 200 200 L-Cystine 3 3 3 weight, plasma and adipose tissue collection 48.2 48.2 48.2 3 3 3 Final body weights and weight gains were not different Mineral Mix 35 35 35 between mice on the native corn starch diet and enzymatically Choline Bitartrate Vitamin Mix 10 10 10 Total Diet (g) 1000 1000 1000 gain)modified and cornfood intake starch ( dietsP < 0.05), (Table despite 2). Mice similar on body the nativeweight corn and Abbreviations: MCC (microcrystalline cellulose, control): non-viscous weightstarch dietgain to had the higher CGTase feed treated efficiency starch (ggroups. feed/g body weight

Analysis of organ weight in studies is an important endpoint starchwater insolublediet treated fiber; with N CGTase= Native corn starch diet; CGT-W = washed corn starch diet treated with CGTase; CGT-NW = non-washed corn

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Table 2: CGT-W and CGT-NW diets might be ascribed to the presence of free sugars and oligosaccharides in the CGT-NW. Moreover, Weighta. Effect of experimental diets on Body Weight, Body Weight the glucose pattern obtained with the CGTase treated starches Gain, Food Intake, Feed efficiency, Liver, Kidney and Adipose Tissue N CGT-W CGT-NW were less digestible. It has been previously reported that the administrationsupported the assumption of resistant that starch enzymatically reduced blood modified glucose starches level Body weight (g) 31.2±4.9 31.9±3.8 32.8±4.0 due to the promotion of glycogen synthesis and inhibition of FoodBody intake weight (g/day) gain (g) 29.8±4.3 30.4±3.3 31.4±3.3 133.9±6.2a 110.0±7.9b 108.9±8.3b at sub-gelatinization temperature, a number of possible changes ingluconeogenesis starch granule [17].structure After and enzymatic biochemical modification properties with may CGTase occur FeedLiver efficiencyweight (g) 4.8±0.5a 3.7±0.4b 3.5±0.4b that affects glucose disposal to its absorption into the blood. In Kidney weight (g) 0.9±0.1 0.9±0.1 0.9±0.1 fact, previous studies reported that enzymatic treatment of the EA (g) 0.2±0.0 0.2±0.0 0.2±0.0 starch by CGTase seems to affect the amorphous zone, releasing a 1.4±0.5 1.5±0.6 1.3±0.8 sugars from those accessible chains, and leading to a more difference at P crystalline structure that was more resistant to the amylase Data presented as means ± SE. Different letters indicate significant hydrolysis [10,18]. non-washed corn< 0.05. starch EA diet = epididymal treated with adipose; CGTase N = Native corn starch diet; CGT-W = washed corn starch diet treated with CGTase; CGT-NW =

Figure 2 initial blood glucose values were adjusted to 0 and the subsequent values adjusted by subtracting the initial value. The samples studied were native corn starch Glucose diet (■ tolerance), washed in corn mice starch gavage diet with treated glucose with (2 CGTase g/kg body (♦) and weight) non-washed after fasting corn forstarch 3 hours diet treatedand area with under CGTase the curve (●). Data (AUC) are values. expressed The as mean n

= 8/group. Error bars represents the standard deviation. Effect of CGTase treated starch and CDs on glucose The area under the curve (AUC) for native and CGT-W tolerance test (GTT) samples was similar and lower than CGT-NW sample. The rate of carbohydrate digestion has been indexed by comparing the The impact of GTase treated starch and cyclodextrins intake AUC of a carbohydrate source to white bread containing the on the glucose tolerance test was tested. Marked differences in same amount of starch, usually 50 g available carbohydrate. The blood glucose levels between the native corn starch control diet glycemic index (GI) has been related to metabolic diseases and and the CGTase treated starches after oral gavage of glucose metabolic syndrome [19]. The tendency to higher epididymal adiposestudies have weights reported from micethe benefits fed CGT-W of low is GIin contrastdiets to improve to most showedwere detected different (Figure trends. 2).In mice The on time the to native reach corn the starch maximum diet, studies that intake of slower digestible carbohydrates (low theglucose glucose peak concentrationwas about the same peaked (20 sharply min), but and beyond then that returned plots GI) decrease adiposity compared to high GI diet in Wistar rats of mice fed the CGT-NW treated starch remained higher longer, corn[20], starch diabetic promoted Sprague-Dawley by CGTase rats, resulted C57BL/6J in slower mice digestible [21] and suggestingalmost to baseline the mice at have 2 hrs. become In contrast, insulin the resistant blood onglucose the high levels fat carbohydratesin 129SvPas mice that [22,23],induced different thus the metabolism. enzymatic modification of diet or the starch was less digestible. The glucose plot observed when feeding CGT-W displayed lower glucose concentration Impact of CGTase treated starch and CDs on lipid metabolism but showed steady levels longer. Differences observed between To determine the impact of CGTase treated starches and than those obtained with the other diets during the first hour,

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Central Bringing Excellence in Open Access cyclodextrins on the lipid metabolism, the plasma cholesterol CGTase treated starches containing cyclodextrins would allow distribution and the analysis of lipids in liver and feces were reducing the plasma cholesterol counteracting the absorption determined. ability of the porous starch. Plasma lipoprotein cholesterol results are presented in In addition to insulin resistance and high fasting blood glucose, fatty liver, increased plasma lipids and high blood pressure are characteristics of metabolic disease. Liver lipid differences(Table 3). No were significant observed difference concerning was the found plasma regarding cholesterol total cholesterol content owing to these particular diets, but significant P < 0.01), likely concentrations.profile is presented However, in (Table levels 4). ofGenerally, fat in the the liver CGTase were treated clearly distribution.due to the absorption Significant ability higher of levels the porous of LDL starchcholesterol resulting in plasma from lowercorn starch from diets mice tended fed theto reduce CGT-NW total cornand esterified starch diet, cholesterol which were quantified in mice fed the diet CGT-W diet ( supported the observed differences in plasma cholesterol in tended to increase the level of HDL cholesterol when compared mice fed the CGT-NW diet. In particular, total cholesterol and withthe enzymatic N and CGT-W treatment diets. Moreover, [24]. Consumption the level of ofVLDL CGT-NW cholesterol diets P < 0.05) for mice fed the CGT-NW compared with the mice fed with the other two diets (P < 0.05). diet compared with the other diets. The CGT-NW also tended Highester fatcholesterol diet may were induce significantly hepatic steatosis lower in and the signs CGT-NW of hepatic group towas lower significantly LDL cholesterol lower ( and a tendency to lower LDL/HDL insulin resistance in the animals, as also observed in obese P < 0.01) from enzymatically aratio cholesterol being significantly sequestrant different that effectively ( removes cholesterol humans [16]. Present results confirmed that a high fat diet having frommodified animal sample products without improving hydrolysis their products, nutritional CGT-W. characteristics β-CDs is plasmaenzymatically lipoprotein modified cholesterol. corn starch containing cyclodextrins (CGT-NW)led to improve lipid liver profile in mice, as well as When lipid content in feces was determined (Figure 3), P < 0.05) in of[8,25]. starch There and is excreted a possibility in the that feces. cholesterol In order in the to intestinal maintain mice treated with native corn starch diet compared to mice fed homeostasis,lumen may be fecal bound cholesterol by β-CDs loss formed results by thein increased CGTase hydrolysis uptake of withtotal enzymaticallyfecal lipid excretion treated was corn significantly starch diets. higher This (result would LDL cholesterol from the blood thus reducing blood cholesterol levels. Considering the adsorption ability of the porous starch mentioned. Mice on the native starch diet had higher food intake and the cyclodextrins capacity to form inclusion complexes with explain differences in food intake and feed efficiency previously hydrophobic compounds, it seems that only the inclusion of to higher fat extraction in feces that resulted in maintenance of bodyand feed weight efficiency values. than Again, mice the onadsorption the CGTase capacity treated of thestarch porous due Table 3: Plasma cholesterol distributiona. starches could be responsible of the lower excretion of the lipids. N CGT-W CGT-NW CONCLUSION VLDL (mg/dL) ** ** ** LDL (mg/dL) * * * 561±87b 562±104b 381±140a starch with or without hydrolysis products (oligosaccharides HDL (mg/dL) 1945±750a 2985±793b 2387±858ab Determining the metabolic effect of CGTase modified granular TC (mg/dL) 15755±1703 15972±1799 16887±919 fat diet, provided a new perspective in order to modify food and cyclodextrins) in the C57BL/6J mouse subjected to a high * * * properties aiming at improving their functionality and their LDL/HLD 18012±1995 19595±1852 19258±1468 ** impact in human health. The presence/absence of hydrolysis 0.125±0.037a 0.182±0.039b 0.145±0.052ab P<0.05).* Values are means ± SD. Means with the same letter in a roware not differences among mice in relation to glycemic response and lipid eachsignificantly other ( P<0.1different from each other ( Values are means ± SD. products in CGTase modified starches headed to metabolic Means with the same letter in a row are not significantly different from ).N = Native corn starch diet; CGT-W = washed corn 6.00 starch diet treated with CGTase; CGT-NW = non-washed corn starch diet treated with CGTase; TC = total cholesterol 5.00 * Table 4: Effects of experimental diets on hepatic lipid and cholesterol concentrations in micea. 4.00

N CGT-W CGT-NW 3.00

Fat (%) Fat 2.00

Total lipid (%) 8.0±0.3 8.2±0.8 7.0±0.5 1.00 TC (μg/g liver) 101.5±29.7b 94.7±16.6b 58.4±17.3a 0.00 FC (μg/g liver) 11.4±4.5 12.8±4.3 10.2±4.7 Native CGT-W CGT-NW EC (μg/g liver) 88.890.1±17.8b 86.581.9±8.7b 48.2±8.9a a Figure 3 Total lipid extraction in feces in male mice fed with Native Ester Ratio (%) 82.5 corn starch (N), washed corn starch treated with CGTase (CGT-W) or P < 0.05 Data presented as means ± SE. Different letters within a row indicate non-washed corn starch treated with CGTase (CGT-NW). * Denotes significant difference at . TC = total cholesterol; FC = free P < 0.05.Error bars represents the standard corncholesterol; starch dietEC = treated Ester cholesterol; with CGTase N = Native corn starch diet; CGT-W deviation. = washed corn starch diet treated with CGTase; CGT-NW = non-washed significant difference at

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Central Bringing Excellence in Open Access metabolism. CGTase treated starch induced a decrease in food 11. intake, longer steady levels of blood glucose, an increase in the obtained by amylase or amyloglucosidase treatments. Carbohydr Dura A, Błaszczak W, Rosell CM. Functionality of porous starch levels of plasma cholesterol, and reduced levels of lipids in liver Polym. 2014; 101: 837-845. CGT-NW diet conducted to insulin resistant mice response and lowerand feces. cholesterol Besides those content, effects, increasing the presence HDL-cholesterol of cyclodextrins values in 12. lipoproteinGerman JB, cholesterolXu RP, Walzem distribution R, Kinsella in plasma JE, Knuckles of hamsters. B, Nakamura Nutr Res. M, et al. Effect of dietary fats and barley fiber on total cholesterol and of granular starch offers an additional possibility to obtain 13. 1996; 16: 1239-1249. healthierwhile decreasing food ingredients. VLDL-cholesterol. Overall, CGTase modification characterization of bile acid, sterols, and determination of acylglyceridesHong YJ, Turowski in feces M, from Lin soluble JT, Yokoyama cellulose-fed WH. hamsters Simultaneous using ACKNOWLEDGEMENTS

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Cite this article Dura A, Yokoyama W, Rosell CM (2017) Effects of Cyclodextrin Glycosiltranferase Modified Starch and Alfa and Beta Cyclodextrins on Plasma Glucose and Lipids Metabolism in Mice. J Drug Des Res 4(5): 1051.

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