Nutrition Analysis Research Laboratory

Laboratory Supervisors and Device Users

Mehmet KARAKUS

(Laboratory Supervisor and Device User)

E-Mail: mehmetkarakus@adiyaman.edu.tr 
Web: -
Phone: +90 416 2233800 - 2254

Zubeyde Nur GOKDOGAN
(Device User)

E-Mail: zgokdogan@adiyaman.edu.tr 
Web: -
Phone: +90 416 2233800 - 2259

Seher SAYGI
(Device User)

E-Mail: sdurak@adiyaman.edu.tr 
Web: -
 Phone: +90 416 2233800 - 2259    

Analysis Name

Nutrition Analysis  

Device Brand and Model

• HPLC Device (SHIMADZU LC-20A)

• UV-1800 Spectrophotometer  (SHIMADZU )

• Oil Test Device (BÜCHİ B-811)

• Nitrogen Protein Device (BUCHI K-355)

• Moisture Test Device  (AND MX-50)

• Gerber Centrifugal  (FUNKE GERBER)

• Refractometer (RUDOLPH J47 AUTOMATİK REFRACTOMETER)

• Cooled Centrifugal (HETTIC ROTANTA 460R)

• PH Meter (THERMO SCIENTIFIC ORION 2 STAR)

• EC Meter (THERMO SCIENTIFIC ORION 3 STAR)

General Information

Some Basic Chemical Analysis Applied to Foodstuffs

• Acidity Determination

• Ash Determination

• Determination of Moisture

• Protein Determination

• Fat (Oil) Determination

• Determination of Dry Matter

• Starch Determination (Qualitatively)

• Dry Matter Determination(By Refractometer)

• Determination of Water İnsoluble Ash

• Sugar Analysis ( Fructose, Glucose, Sucrose) by HPLC

• Ph Determination

• Conductivity Measurement ( By EC meter)

Honey Analysis

• Acidity Determination

• Moisture Determination

• Determination of Diastase

• Electrical Conductivity ( ( By EC meter)

• HMF (Hidroksimetilfurfural)  Determination  ( By HPLC)

• Sugar Analysis (  Fructose, Glucose, Sucrose) (By HPLC)

• Commercial Glucose Determination

• Ash Determination

Edible Oil Analysis

(Olive Oil)

• (K)  Acidity  (Free Fatty Acidity)

• (K)Moisture and Volatile Matter

• (K) Impurities Insoluble in Ether

• (K) Peroxide Number

• (S) Relative Density ( Pyknometer )

• (S) Refractive index

• (S) Composition of Fatty Acids (GC-FID)

• (T) Specific Absorbance

• (T) Mineral Oil Detection

• (T) Prina Oil Detection

Analysis in Flour and Bakery Products

• Crude Protein Analysis

• Wet Gluten Analysis

• Dry Gluten Analysis

• Acidity Determination

Analyzes in Milk and Dairy Products

• Fat Determination (Gerber) 

• Acidity Determination

• Dry Matter Determination

• The Amount of water

• Protein Analysis (Kjeldahl) 

Analyzes in Animal Feed Product

• Oil Analysis

• Protein Analysis

• Ash Determination

• Determination of moisture

• Determination of Cellulose

• Energy Calculation

Analysis Request Form for Nutrition Analysis

Device Users

Bayhan KARABULUT

(Device User)

E-Mail: bkarabulut@adiyaman.edu.tr
Web: Bayhan KARABULUT 
Phone: +90 416 2233800 - 2258

Elif PEKEROGLU TEMURTAS
(Device User)

E-Mail: etemurtas@adiyaman.edu.tr 
Web: Elif PEKEROGLU TEMURTAS
Phone: +90 416 2233800 - 2255

Analysis Name

Dynamic Mechanical Analyzer (DMA)  

Device Brand and Model

PERKİN ELMER & 7100

General Information

DMA are analytical instruments that determine the physical properties of a wide range of materials such as polymer solutions, composites and solids. Physical properties of these materials are strength, tension, strain, frequency and temperature values. While the materials are deformed by the applied mechanical stress, the energy loss properties are determined by measuring the values ​​in the displacement according to the applied force. Analyzer records temperature-dependent visco-elastic properties and determines the modulus of elasticity and damping coefficient by applying an oscillating force to the sample.

DMA mainly differs from other mechanical devices in two ways. First, the tensile testers focus solely on elastic particles. Second, tensile testers operate outside of the linear viscoelastic range. DMA works within the viscoelastic range and is also more sensitive to samples' structures.

Sample Preparation

For DMA Analysis, the desired thickness, width and length of the samples must be prepared by the researchers.

Usage Area

Materials such as polymers, polymer blends, elastomers, composites, fibers, films, and resins can be tested with DMA.

Analysis Request Form for DMA Analysis

Laboratory Supervisors  and Device Users

Fikret BUYUKKAYA KAYIS
(Laboratory Supervisor and Device User)

E-Mail: fkayis@adiyaman.edu.tr  

Web: Fikret  BUYUKKAYA KAYIS

Phone : +90 416 2233800 - 2253   

Zubeyde Nur GOKDOGAN
(Device User)

E-Mail: zgokdogan@adiyaman.edu.tr  

Web: -
Phone: +90 416 2233800 - 2260    

Seher SAYGI
(Device User)

E-Mail: sdurak@adiyaman.edu.tr
Web: -
Phone: +90 416 2233800 - 2260

Device Name

Thermogravimetric - Differential Thermal Analyzer (TG / DTA)

Device Brand and Model

HITACHI & 7300

General Information

Thermogravimetric analysis (TGA), is the method in which the change in sample mass is examined as a function of temperature or time in a controlled atmosphere (in an environment where the temperature is increased programmatically). 
Differential Thermal Analysis (DTA): The temperature difference between the sample and the reference material is examined as a function of the applied temperature. 

The temperature of the sample is subtracted from the temperature of the reference and this difference is plotted against increasing temperature. The peaks seen here can be endothermic or exothermic.

Sample Preparation

It is necessary to consider many factors in sample preparation for TG-DTA experiments. These; the sample must have all the properties of the material to be analyzed. The mass of the sample should be sufficient for the test. The sample should be able to change very little during the sample preparation phase. No contamination should occur in the sample during the sample preparation phase. The morphology of the sample affects the diffusion value of the reaction result and the order of the reaction course. However, it can also affect the heat transfer within the sample. The mass used in the experiment can affect the mass loss rates during the heat transfer process and similar diffusions.
For the scales, it is appropriate to use a sample of suitable size but as small as possible (5-10 mg) and a powder dispersed sample.
Sample shape is also important in thermal measurements. The sample cup and the sample surface should be in contact. Especially for DSC and DTA measurements, our sample should fit into the sample container. In sensitive measurements, the contact surface should be increased by using the cover.

Usage Area

Applications such as transformation, evaporation, sublimation, decomposition, decarbonation, dihydroxylation, dehydration, combustion products of organic materials, coal, oil and fuels, oxidation of metals, reduction, sintering, corrosion, decomposition of polymers can be performed with the TGA / DTA device. With TGA, the resistance of chemical and natural fiber-based textile materials (fiber, yarn, fabric) to heat and flame can be tested for quality control purposes. DTA determines melting, boiling and disintegration points with high accuracy. It also provides information about crystallization and phase changes.
Substances that can be examined by thermal methods; 

• Biological substances,

• Building materials,

• Catalysts,

• Ceramics and glasses,

• Solid oils,

• Soap and candles

• Flame extinguishers,

• Food and additives,

• Inorganic compounds,

• Liquid crystals,

• Metals and alloys.

Analysis Request Form for TG / DTA Analysis