Invert Sugar Determination by Polarimeter
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
BREWERS' CRYSTALS® High Maltose Corn Syrup Solids
BREWERS’ CRYSTALS® High Maltose Corn Syrup Solids Advantages • Good match for all malt wort • Gluten free • Consistent purity and quality while adding flexibility and capacity Ingredion understands that brewery is an art as well as a science; our brewing adjunct portfolio is based on more What is it? than 100 years of service to the industry with a variety of ingredients. We take pride in our quality and ISO 9001 and BREWERS’ CRYSTALS High Maltose Corn Syrup Solids are FSSC 22000 systems certifications and our reliability one fermentable carbohydrates from corn, specially produced of the strongest supply chains in the industry. to obtain a profile close to an all-barley malt wort (Figure 1). Easy to use in powder form, they can be added directly to the brew kettle to create beers with crisper lighter flavor, or later How do I use it? in the process to add more complex character in priming. Ingredion BREWERS’ CRYSTALS HM Corn Syrup Solids can be easily added as an adjunct directly to the brewing kettle BREWERS’ CRYSTALS HM Corn Syrup Solids provide 100% or before filtration steps to add crisp and light character- total extract and 80% fermentable extract allowing the istics to lagers, ales and special beer recipes, or in priming Brew Master the flexibility of including them in a broad for added notes to complex beers. range of formulation and thus a wider spectrum of beers. Why should I use it? FIGURE 1: CARBOHYDRATE PROFILES COMPARISON 60 The benefits of BREWERS’ CRYSTALS HM Corn Syrup Solids: 56 • Packaged in convenient 25 kg (55 lb) multiwall poly-lined 52 BREWERS’ 50 CRYSTALS bags, they are easy to handle and store without the need for Wort* additional liquid handling systems. -
Metabolism of Monosaccharides and Disaccharides Glucose Is the Most Common Monosaccharide Consumed by Humans
Metabolism of Monosaccharides and disaccharides Glucose is the most common monosaccharide consumed by humans. Two other monosaccharides that occur in significant amounts in the diet are fructose and galactose. Galactose is an important component of cell structural carbohydrates. Catabolism of fructose and galactose are essential pathways of energy metabolism in the body (both illustrated with blue in the adjacent diagram). About 15-20% of calories in the diet are supplied by fructose (55 g/day). The major source of fructose is the disaccharide sucrose. Entry of fructose is not dependent on insulin. Galactose is an important component Of cell structural carbohydrates. Fructose needs to be phosphorylated to enter the pathway either by hexokinase or fructokinase. Hexokinase has low affinity towards fructose (high Km) therefore unless high concentrations of fructose exist very little fructose will be converted to Fructose 6-P. Fructokinase provides the main mechanism of phosphorylation to fructose 1-P, Fructose 1-P does not convert to Fructose 1,6 bisphosphate but is metabolized to Glyceraldehyde and DHAP by aldolase B. DHAP can enter glycolysis or gluconeogenesis while Glyceraldehyde can be metabolized by a number of pathways. The rate of fructose metabolism is more rapid than that of glucose because trioses formed from fructose 1-phosphate bypass PFK1, the rate limiting step in glycolisis. What disorders are associated with fructose metabolism? Where? First lets summarize the various routes of Fructose metabolism in the diagram. Disorders of fructose metabolism can result from excessive fructose consumption. An increase in fructose 1-P due to rapid phosphorylation. This accumulation leads to sequestering of phosphate (A & B). -
Relationships Among Impurity Components, Sucrose, and Sugarbeet Processing Quality
2 Journal of Sugar Beet Research Vol. 52 Nos. 1 & 2 Relationships Among Impurity Components, Sucrose, and Sugarbeet Processing Quality L. G. Campbell and K.K. Fugate USDA-ARS Northern Crop Science Laboratory, Fargo, ND 58102-2765 Corresponding author: Larry Campbell ([email protected]) DOI: 10.5274/jsbr.52.1.2 ABSTRACT Sodium, potassium, amino-nitrogen, and invert sugar are nat- urally-occurring constituents of the sugarbeet root, referred to as impurities, which impede sucrose extraction during rou- tine factory operations. Three germplasm lines selected for low sodium, potassium, or amino-nitrogen and a line selected for high amino-nitrogen concentration from the same parental population and two lines selected from another source, one for high and the other for low amino-nitrogen concentration, were the basis for examining relationships among the impurity components and between the impurity components and sucrose concentration, sucrose loss to mo- lasses, and sucrose extraction rate. Concentrations of the three impurity components were altered through selection; however, in no case did this result in a consistent significant increase in sucrose concentration or estimates of the propor- tion of the sucrose that would be extracted. Correlation analyses indicated a larger role for sodium than for potas- sium or amino-nitrogen in determining relative sucrose con- centration. Selection for low sodium concentration, however, did not increase the percent extractable sucrose, relative to the parental population. The probability of significant im- provement in the processing quality of elite germplasm by re- ducing the concentration of individual impurity components appears to be low, based upon the populations examined in this study. -
Effect of Agronomic and Storage Practices on Raffinose, Reducing Sugar, and Amino Acid Content of Sugarbeet Varieties1
Effect of Agronomic and Storage Practices on Raffinose, Reducing Sugar, and Amino Acid Content of Sugarbeet Varieties1 R. E. WYSE AND S. T. DEXTER2 Received fo,- /Jub lication July IO. 1970 Introduction The decrease in bagged sucrose per ton of beets during stor age results primarily from two factors. Sucrose is respired, evolv ing CO2 , The transformation of sucrose and other beet con stituents into raffinose, reducing sugars, amino acids, etc., re sults in an accumulation of non-sucrose solutes in the thin juice and corresponding increased sucrose losses into the molasses. Reducing sugars, raffinose and amino acids account for a major portion of the fluctuation in impurities during storage (Wyse et al.) 1970). The purpose of this study was to determine the in fluence of harvest date, nitrogen fertilization and storage tem perature on the content of these three impurities in several sugarbeet varieties. Reducing Sugars The predominant reducing sugars in the beet are glucose and fructose. Free galactose and arabinose are found only in trace amounts (Silin, 1964). Reducing sugars are presumably destroy ed during lime defecation and occur in very small amounts in beet molasses (McGinnis, 1951; Silin, 1964). In this process the reducing sugars are degTaded to acids (lactic, formic, acetic, sac charinic) (Carruthers et al.) 1959) which must be neutralized by the addition of sodium carbonate before evaporation to re duce soluble lime salts and to prevent sucrose inversiop (Silin, 1964; McGinnis, 1951). As a result of the addition of sodium carbonate, molasses quantity and purity are increased resulting in increased sucrose losses (Si Jin, 1%4). -
The Relationship Between Fructose, Glucose and Maltose Content With
stry: Cu i rre em n t Moussa et al., Organic Chem Curr Res 2012, 1:5 h R C e c s i e n a DOI: 10.4172/2161-0401.1000111 a r Organic Chemistry c g r h O ISSN: 2161-0401 Current Research ResearchResearch Article Article OpenOpen Access Access The Relationship between Fructose, Glucose and Maltose Content with Diastase Number and Anti-Pseudomonal Activity of Natural Honey Combined with Potato Starch Ahmed Moussa1*, Djebli Noureddine2, Aissat Saad1 and Salima Douichene2 1Institute of Veterinary Sciences University Ibn-Khaldoun, Tiaret, Algeria 2Departments of Biology, Faculty of Sciences, Mostaganem University, Algeria Abstract Honey whose medicinal uses date from ancient times has been lately rediscovered as therapy for burns. Objective: To evaluate the additive action of potato starch on the antipseudomonal activity of natural honey. Methods: Physicochemical parameters of 6 samples of Algerian honeys were analysed; four parameters were measured, including Diastase, glucose, fructose and maltose. The antibacterial activity was tested using the well-agar diffusion assay. Results: Six honey samples with initial diastase activity between 22.1 and 7.3 Schade units were tested. Glucose, fructose and maltose values range between 21, 45-30, 95%, 25, 20-37, 81% and 4, 72-78, 45% respectively. The zone inhibition diameter (ZID) for the six honey samples without starch against P. aureogenosa ranged between 26 and 31 mm. When starch was mixed with honey and then added to well, a zone inhibition increase diameter (ZIID) 27 and 32 mm. The percentage increase (PI %) was noticed with each variety and it ranged between 3, 57 and 18, 75%. -
Lecture 2 Assistant Lecture Tafaoul Jaber
Lecture 2 Assistant Lecture Tafaoul Jaber Effect of alkali on carbohydrates Benidict , Fehling , Barfoed tests . These tests are based on the most important chemical property of sugar, the reducing property. Benidict and fehling tests are used to determine presence of reducing sugar while Barfoed test is used more specifically to distinguish monosaccharides and disaccharides. Reducing and Non- reducing sugars Sugars exist in solution as an equilibrium mixture of open- chain and closed-ring (or cyclic) structures. Sugars that can be oxidized by mild oxidizing agents are called reducing sugars because the oxidizing agent is reduced in the reaction. A non-reducing sugar is not oxidized by mild oxidizing agents. All common monosaccharides are reducing sugars. The disaccharides maltose and lactose are reducing sugars. The disaccharide sucrose is a non-reducing sugar. Common oxidizing agents used to test for the presence of a reducing sugar are: Benedict's solution, Fehling's solution. Benedict's Test Benedict's test determines whether a monosaccharide or disaccharide is a reducing sugar. To give a positive test, the carbohydrate must contain a hemiacetal which will hydrolyse in aqueous solution to the aldehyde form. Benedict's reagent is an alkaline solution containing cupric ions, which oxidize the aldehyde to a carboxylic acid. In turn, the cupric ions are reduced to cuprous oxide, which forms a red precipitate. This solution has been used in clinical laboratories for testing urine. RCHO + 2Cu2+ + 4OH- ----- > RCOOH + Cu2O + 2H2O Hemiacetal & hemiketal formation Procedure Place 1 ml of carbohydrates solutions in test tube. To each tube, add 1 ml of Benedict's reagent. -
Sugars Amount Per Serving Calories 300 Calories from Fat 45
Serving Size 1 package (272g) Servings Per Container 1 Sugars Amount Per Serving Calories 300 Calories from Fat 45 % Daily Value* What They Are Total Fat 5g 8% Sugars are the smallest and simplest type of carbohydrate. They are easily Saturated Fat 1.5g 8% digested and absorbed by the body. Trans Fat 0g Cholesterol 30mg 10% There are two types of sugars, and most foods contain some of each kind. Sodium 430mg 18% Total Carbohydrate 55g 18% Single sugars (monosaccharides) Sugars that contain two molecules of Dietary Fiber 6g 24% are small enough to be absorbed sugar linked together (disaccharides) are Sugars 23g directly into the bloodstream. broken down in your body into single sugars. Protein 14g They include: They include: Vitamin A 80% Fructose Sucrose (table sugar ) = glucose + fructose Vitamin C 35% Calcium 6% Galactose Lactose (milk sugar) = glucose + galactose Iron 15% Glucose Maltose (malt sugar) = glucose + glucose * Percent Daily Values are based on a 2,000 calorie diet. Your Daily Values may be higher or lower depending on your calorie needs: Calories: 2,000 2,500 Total Fat Less than 65g 80g Where They Are Found Saturated Fat Less than 20g 25g Cholesterol Less than 300mg 300mg Sugars are found naturally in many nutritious foods and beverages and are also Sodium Less than 2,400mg 2,400mg Total Carbohydrate 300g 375g added to foods and beverages for taste, texture, and preservation. Dietary Fiber 25g 30g Naturally occurring sugars are found in a variety of foods, including: • Dairy products • Fruit (fresh, frozen, dried, and canned in 100% fruit juice) Sugars are a major source of daily calories for many people and can • 100% fruit and vegetable juice increase the risk of developing • Vegetables cavities. -
MINIMIZATION of SUCROSE LOSSES in SUGAR INDUSTRY by Ph and TEMPERATURE OPTIMIZATION
The Malaysian Journal of Analytical Sciences, Vol 12, No 3 (2008): 513 - 519 MINIMIZATION OF SUCROSE LOSSES IN SUGAR INDUSTRY BY pH AND TEMPERATURE OPTIMIZATION Kornvalai Panpae 1*, Wasna Jaturonrusmee 1, Withawat Mingvanish 1 , Chantana Nuntiwattanawong 2, Surapon Chunwiset 2 , Kittisak Santudrob 1 and Siriphan Triphanpitak 1 1Department of Chemistry , Faculty of Science , King’s Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand 2Chaimongkol Refined Sugar Company, Limited.( U-Thong Factory ), Supanburi Province 72160, Thailand * Corresponding author: [email protected] Abstract Invert sugar has several disadvantage properties that play an important role in many food applications. It has a high affinity for water and is the cause of making products retain moisture.Invert sugar also affects the caramelization process , producing a browning effect. In this study, the possibility of minimization of sucrose inversion during the industrial production of sugar cane was investigated by the variation of the important parameters, i.e. temperature and pH of sugar cane juice for each of samples. The amounts of sucrose and reducing sugar alerting during the sucrose inversion process were determined by the values of % Pol and % reducing sugar (% RS), respectively. Starting with the study of temperature and pH effects of the sucrose solution with the concentration of 16 Brix, used as a sample model, it was found that no change in amounts of reducing sugar and sucrose was observed at room temperature (34 oC) in the pH range of 5-11. At pH 3, the amounts of reducing sugar increased and the amount of sucrose decreased as the time increased. -
Low Blood Glucose (Hypoglycemia)
Low Blood Glucose (Hypoglycemia) Hypoglycemia, also known as low blood Hunger, nausea glucose (blood sugar), is when your blood Color draining from skin (pallor) glucose levels have fallen low enough that you need to take action to bring them back Feeling sleepy to your target range. This is usually when your blood glucose is less than 70 mg/dL. However, Feeling weak, having no energy talk to your doctor about your own blood Blurred/impaired vision glucose targets, and what level is too low for you. Tingling or numbness in lips, tongue, cheeks Headaches When can it happen? Coordination problems, clumsiness Low blood glucose can happen if you’ve skipped a meal or snack, eaten less than usual, or been Nightmares or crying out in sleep more physically active than usual. If you don’t Seizures take steps to bring glucose levels back to normal, you could even pass out. What should you do? What are the symptoms? The 15-15 rule—have 15 grams of carbohydrate to raise your blood glucose and check it after Each person’s reaction to low blood glucose is 15 minutes. If it’s still below 70 mg/dL, have different. It’s important that you learn your own another serving. signs and symptoms when your blood glucose is low. Repeat these steps until your blood glucose is at least 70 mg/dL. Once your blood glucose is back Signs and to normal, eat a meal or snack to make sure it symptoms of doesn’t lower again. low blood glucose include: This may be: Feeling shaky Glucose tablets (see instructions) Being nervous Gel tube (see instructions) or anxious 4 ounces (1/2 cups) of juice or regular soda Sweating, chills, (not diet) clamminess 1 tablespoon of sugar, honey, or corn syrup Mood swings, irritability, impatience 8 ounces of nonfat or 1% milk Confusion Hard candies, jellybeans, or gumdrops—see Fast heartbeat food label for how many to consume Feeling light-headed or dizzy Continued » Visit diabetes.org or call 800-DIABETES (800-342-2383) for more resources from the American Diabetes Association. -
Effects of Glucose-To-Fructose Ratios in Solutions on Subjective Satiety, Food Intake, and Satiety Hormones in Young Men1–3
Effects of glucose-to-fructose ratios in solutions on subjective satiety, food intake, and satiety hormones in young men1–3 Tina Akhavan and G Harvey Anderson ABSTRACT of total fat, protein, and energy per capita (3). Second, sugars Background: The greater prevalence of obesity and the metabolic suppress short-term food intake (FI) in children (4, 5) and adults syndrome in the past 35 y has been attributed to the replacement of (6–9), and the magnitude of this effect is inversely related to the sucrose in the food supply with high-fructose corn syrup (HFCS). glycemic response that those sugars elicit (10, 11). Third, HFCS Objective: Two experiments were conducted to determine the effect is a nutritive sweetener containing an unbound form of the same of solutions containing sucrose, HFCS, or various ratios of glucose monosaccharides as sucrose (sugar). Sucrose is composed of to fructose (G:F) on food intake (FI), average appetite (AA), blood 50% fructose and 50% glucose linked together by ␣-1–4 glyco- glucose (BG), plasma insulin, ghrelin, and uric acid (UA) in men. sidic bonds. The most common forms of HFCS are HFCS 55% Design: Sugar solutions (300 kcal/300 mL) were (in %) G20:F80, and 42%. HFCS 55%, used primarily in beverages, is composed HFCS 55 (G45:F55), sucrose, and G80:F20 (experiment 1, n ҃ 12) of 45% glucose and 55% fructose, and HFCS 42%, used primar- and G20:F80, G35:F65, G50:F50, sucrose, and G80:F20 (experi- ily in foods, is composed of 58% glucose and 42% fructose (2). ment 2, n ҃ 19). -
Get Off the Blood Glucose Roller Coaster Avoid the Glucose Highs and Lows That Affect Your Thinking and Mood
Get Off the Blood Glucose Roller Coaster Avoid the glucose highs and lows that affect your thinking and mood. Extreme blood sugar highs and lows can lead to major problems. There are physical symptoms; you are more likely to get long term problems from diabetes as well. Often, there are signs that your blood sugar is off target. Among the first signs are changes in your thinking and mood. Learn to spot and act on the warning signs. This will help you get off the blood sugar roller coaster. The goal is to keep your blood sugar and your mood as stable as you can. Symptoms of low blood sugar (hypoglycemia) When blood sugar drops below the normal range (70-120 mg/dL), you can start to feel signs. You may sweat, get a fast heart beat, and feel jittery. Blood sugar will go lower if you don't take action. Eat or drink something that has sugar. If blood sugar goes lower, things can get worse very fast; you can have confusion, loss of consciousness, or coma. Alice is a patient of mine. She had a recent bout of low blood sugar in the middle of the night. She made it to the kitchen. She knew she needed a snack. She went to the refrigerator and she opened the door; Alice then stood there for 15 minutes. She was trying to decide which juice she should drink to raise her blood sugar. This is how low blood sugar, in its early stage, can affect thinking. Her trouble with being able to make a simple choice like this is common. -
Fructose, Glucose, and Sucrose in Nature
3/13/2017 Fructose, Glucose, and Sucrose In Nature Fructose, Glucose, and Sucrose In Nature By Rex Mahnensmith | Submitted On July 04, 2016 Fructose, glucose and sucrose are often referred to as fruit sugars, and indeed they are. These sugars exist in virtually all tree fruits, in virtually all vine fruits, and in virtually all berries. Fructose, glucose, and sucrose exist in most root vegetables, as well. Fructose and glucose are circular molecules, very similar to each other. Each has 6 carbon atoms, 6 oxygen atoms, and 12 hydrogen atoms. However, the compounds differ slightly in the arrangements of these atoms. Both exist as straight chain molecules and as circular molecules. Both are highly reactive and will react with each other easily, forming sucrose. Glucose and fructose are two products of photosynthesis, whereby plants inspire carbon dioxide from the atmosphere and react this carbon dioxide molecule with water, forming simple single sugars or "monosaccharides." The photosynthetic steps are complex yet precise, yielding glucose principally, then fructose, and ultimately sucrose, which is the result of fructose combining with glucose to form a double sugar or "disaccharide." In the experimental setting, under direct observation, glucose, fructose, and sucrose appear almost simultaneously through the photosynthetic process. The sugar compositions of glucose, fructose, and sucrose differ from plant to plant. http://ezinearticles.com/?Fructose,Glucose,andSucroseInNature&id=9460795 1/3 3/13/2017 Fructose, Glucose, and Sucrose In Nature For example, apples, figs, bananas, grapes, and pears are relatively rich with free fructose sugars when fructosetoglucose ratios within these fruits are analyzed.