DT-6 CONDENSED AND DRIED MILK


1. The purpose of milk concentration is to





2. The condensed milk was first made by





3. The use of higher concentration of milk in condensing plant is limited by





4. The raw material cost in per cent of the sale price of dairy products except liquid milk is highest in case of





5. The vacuum concentration of milk help in





6. The minimum fat per cent required in the Evaporated Milk as per FSSA is





7. The minimum fat per cent required in the Sweetened Condensed Milk as per FSSA is





8. The minimum sucrose addition as per BIS in Full Cream Sweetened Condensed milk is





9. The maximum Bacterial Spore Count in 0.1 g Sweetened Ultra High Temperature (UHT) Treated Condensed Milk as per BIS Specifications is





10. The minimum Sucrose per cent by mass in Sweetened Ultra High Temperature (UHT) Treated Condensed Milk as per BIS Specifications is





11. Quality of raw milk is important for





12. A recombined milk product is





13. The quality of raw milk to be used should be judged with respect to





14. The high quality raw milk





15. The quality of raw milk used for manufacture of condensed milks and milk powders





16. Raw milk for the manufacture of concentrated and dried milk is subjected to various pretreatments which influence





17. The process of microfiltration helps to remove bacteria from milk upto





18. Bactofugation is a process which works on the principle of





19. Forewarming of milk prior to concentration helps to





20. Homogenization of milk/concentrate prior to spray drying





21. The modern vacuum pan has appreciably increased evaporative capacity due to





22. The falling film evaporator has practically replaced the forced recirculation evaporator because





23. The multiple effect condensers are economical because





24. The vacuum in the condensing plant is maintained by





25. Separator in the milk condensing plant separates





26. Condensed milks are the milks having





27. Condensed milks in our country is used





28. Evaporated milk is known as





29. Sweetened condensed milk has





30. Filled Evaporated milk contains specially





31. The sugar added in the SCM is up to the level of





32. The homogenization pressure if employed for milk to be converted to SCM is





33. The sugar ratio of 62.5% is adequate to protect the product from





34. The discolouration defect in SCM added with dextrose can be avoided by





35. The preservation of SCM is by





36. The fouling of SCM condenser mainly occurs because of





37. The term “Striking” refers to





38. Baum’e hydrometer Scale for SCM ranges from





39. The cooling of the SCM after taking out of the condenser helps in





40. Forced crystallization aims at





41. Evaporated milk





42. The fore warming of milk for EM preparation has effect on





43. Homogenization of Evaporated milk





44. Homogenization of Evaporated milk





45. The casein stabilizers are added in Evaporated milk





46. The amount of stabilizer to add to any given batch of EM is determined by





47. The primary purpose of sterilization of EM is





48. The ratio of temperature - time exposure for EM





49. The precautions that are taken after sterilization of EM are





50. Factors that Decrease the Viscosity of the EM are





51. The main advantages of recombined process are





52. The Recombination process involves





53. Skim milk powder used for recombined SCM preparation






54. In absence of agglomeration and instantization, the WMP for reconstitution purposes faces difficulties in





55. Anhydrous Milk Fat is a traditional source of fat for Recombined Milk products because of





56. Usually the powder and fat is mixed for recombining





57. For blending of the high TS content in recombined products





58. The area of recombination is steadily expanding and diversifying because of





59. Because of the concentration of milk, water activity





60. One of the factor for Low heat stability in EM may be





61. Fat separation in case of EM can be minimized by





62. Protein separation in case of EM is





63. High viscosity in EM can result due to





64. When sugars are heated with milk proteins





65. Cooked flavour in milk is the result of





66. When milk is heat treated during concentration





67. The main change in SCM during storage is





68. For forced crystallization





69. The heat-induced change in milk likely to lead to protein coagulation may be





70. The milk showing a very pronounced maximum (~ pH 6.7) and minimum (~ pH 6.9) in stability in HCT/ pH curve is termed as





71. Based on the maximum (~ pH 6.7) and minimum (~ pH 6.9) in stability in HCT/ pH curve, buffalo milk is classified as





72. Chemical stabilizers affect the heat stability of milk by





73. With respect to heat stability, Human milk is quite heat stable and shows stability characteristics of





74. Heat stability is important in the processing operation of





75. The major basis of the commercial sterilization of evaporated milk is





76. Fresh evaporated milk has approximate pH of





77. The heat stability of concentrated milk could be enhanced to a greater extent by





78. For concentrated (evaporated) milk sterilization





79. The Maillard reactions are affected by





80. Bacterial lipases and proteinases due to growth of psychrotrophs may develop





81. In-container sterilization of EM can destroy





82. The milk must be preheated before evaporation in such a way that





83. The creaming in EM can be minimized by addition of





84. Generally gelation is





85. Age thickening and gelation tend to occur





86. As compared to the viscosity of milk, SCM has





87. The turbidity observed in SCM is largely due to





88. Means to control viscosity of recombined SCM are





89. The sandiness in SCM is generally due to the presence of





90. Sugar sedimentation in SCM is not observed if





91. The age thickening in SCM may be due to





92. Rancidity in SCM can be controlled by





93. Fat separation in SCM results because of





94. The causes of curdiness in EM due to heat coagulation may be





95. The curdiness in EM can be prevented by





96. To avoid objectionable fat separation during storage in EM it should be





97. Mineral deposits in EM during storage can be due to





98. The bloats in EM during storage are caused due to





99. The keeping quality of SCM is mainly governed by





100. The remedies for microbial spoilage include





101. The mold button number and size formation in SCM depend upon





102. The bloat of sweetened condensed milk can be controlled by





103. The usual bacterial flavour defects observed in SCM are due to





104. The evaporated milk generally





105. The common bacterial defects of evaporated milk are





106. The characteristic bloats in EM are caused by





107. Bacterial coagulation defect in EM results in to





108. The intense bitterness defect in EM may suggest





109. Freeze concentration is applied where focus is on





110. The modern freeze concentration processes consist of





111. Freeze-drying is also known as





112. The modern freeze drying plants offers advantages such as





113. Re-hydration of Freeze dried products is





114. The basis for using membrane filtration in the dairy industry is





115. The process to remove water from product to increase solids content is known as





116. The process to remove mainly the monovalent ions from whey i.e. partly demineralization and water removal is known as





117. The process using a low-pressure cross-flow for separating colloidal and suspended particles in the range of 0.05-10 microns i.e. bacteria etc. is known as





118. The selective fractionation process using pressures up to 145 psi (10 bars) is known as





119. The ultimate aim of the dry milk industry is to obtain dry products





120. The first usable commercial production of dried milk was invented by





121. The main purpose of the manufacture of milk powder is to





122. The Instant Powder is the powder





123. In 2008 Chinese Sanlu Infant formula milk was found adulterated with





124. The growth of Psychrotrophic Gram-negative rods producing proteinases and lipases in raw milk can be prevented by





125. To kill bacterial spores such as B. cereus and C. perfringens, the heat treatment required is





126. The evaporation stage of milk concentrate decides the functional properties of powders such as





127. The viscosity of milk concentrate





128. The viscosity in milk concentrate generally increases abruptly when TS is higher than





129. The quantity of drum dried milks have been drastically reduced because of





130. Economically the drum drying process for the small volume as compared to spray drier





131. Speed of the drums is important as it affects





132. The roller dried product may be damaged and scorched if there is





133. The starting of the drier is accomplished by





134. The process of Freeze drying consists of





135. The Freezing in Freeze Drier is done to





136. Heating in the Freeze Drier to evaporate moisture can be done by





137. The method of Freeze Drying have disadvantage because





138. The Foam Drying product is exposed to a temperature not exceeding





139. The objectives of Spray Drying are





140. The Spray Drying process is more in use than any other process of drying as





141. The direct burning of natural gas in the drying air though very economical, is undesirable and generally illegal as





142. In a Spray Drier, air and liquid usually enter in





143. The aggregation of powder particles in a Spray Drier is achieved by





144. The most commonly used air filter in Spray Dryer is





145. The advantages of Direct and Semi Direct Air Heating systems in Spray Drier are





146. The advantages of Indirect Air Heating systems in Spray Drier are





147. The parallel flow of milk and air in drying chamber is advantageous because





148. The Direct and Semi Direct method of Air Heating Systems in Spry Dryer have the disadvantage of





149. The objective of atomizing is to





150. The average particle size of the milk fog provided by efficient atomization has a diameter of





151. The advantages of use of Hydraulic Pressure Jet type of atomizers are





152. The pressure is not applied for atomization in





153. It is common practice to control the water content of the powder by





154. It is necessary to remove the dried powder particles from heating air





155. The products separated from the air in the drier can be removed from the drier by





156. An explosion can occur if temperature of the organic material reaches to





157. The principle of cooling powder outside the drier involve





158. The solids losses observed when separating air from dried powder particles on an average is





159. Better efficiency in drying by spray drier can be achieved by





160. The stickiness problem of powder when it is discharged from the first stage drying chamber is not faced when the powder leaving has moisture content





161. The final drying stage in multi-stage drier is often known as a fluid bed drier, because





162. Conditions for fluidization are





163. The limitations of Foam Spray Dried powder are





164. The whey protein denaturation of milk processed for Low Heat NFDM should be





165. The control of moisture content in powder is carried out on the drying plant generally by





166. The TS content of the milk feed for drying Low Heat NFDNM is generally maintained at





167. For manufacture of Low Heat NFDM, the major precautions to be taken are





168. For the manufacture of High Heat NFDM, the general practice is to heat the skim milk in a hot well to





169. The factors influencing the keeping quality of WMP are





170. The milk for the manufacture of WMP is homogenized at





171. Intense pre-heating is needed for the milk intended for the manufacture of WMP





172. For the manufacture of WMP, generally, a low exhaust air temperature is preferred





173. For manufacture of WMP using Roller Dryer





174. The instantization is helpful in





175. The principle of instantization is





176. Agglomeration results into wet and/or semi-dry particle with size





177. The process of agglomeration can be






178. Attrition defined as the partial break down of powder agglomerates results due to





179. The process of agglomeration





180. The powder particles size desirable for agglomeration is





181. The agglomeration of skim milk powder can be improved by





182. The gas packaging of dry whole milk requires a maximum limit of headspace oxygen to





183. The amount of lecithin preferred for lecithination of dry whole milk should





184. The dried milk powder has the water activity (aw) of





185. The deterioration of dried milks can occur if sufficient care is not taken for protection from





186. The whole milk and infant milk powders need protection against oxygen and moisture





187. In all situations, the drying time in the drying zone of the drying chamber may very between the smallest and the largest drops by





188. The aroma retention during drying increases with





189. The whey protein nitrogen index (WPN index) is generally used to classify milk powders according to





190. Low heat milk powders have whey proteins nitrogen





191. The inactivation of enzymes and killing of microorganisms during milk drying process greatly depend on





192. The insolubility of milk powders results because of the





193. The reaction rate of autoxidation of lipids in dried milks is high for low water activity product possibly because





194. Good-quality dried milk should





195. The Roller Dried powder has





196. The Spray Dried powder may have air occupying






197. The particles in agglomerated milk powder may be





198. The outlet air temperature of the drying chamber of a Spray drier depends on a large number of factors which are related to





199. If the milk feed to the atomizer of a Spray Drying plant is increased whilst the volume and temperature of the hot air supply remains unchanged, it results in to





200. A powder with a good flowability will increase especially





201. The Fria¬bility of a powder affects





202. Scorched particles are generally a measure for





203. Free fat content of milk powders which can affect both reconstitution and powder stability is





204. Apart from the quality of milk used, the shelf-life of milk powder is dependent on





205. The most important variable determining the rate of undesirable changes in milk powder is





206. The flavour of reconstituted spray powder will be close to that of pasteurized milk if preheating is done at





207. Retardation of the development of oxidative off flavours and off odours can be done by





208. The defects of browning can be reduced by





209. With modern properly managed plant, spray process lumpy powder is more likely to arise from





210. The insolubilization of powders can be inhibited for all practical conditions of storage by





211. The free fat as % of the total fat in spray dried powder have been reported ranging from





212. The free fat as % of the total fat in Roller dried powder have been reported ranging from





213. The major cause of deterioration of lysine content in milk powder is





214. The fat per cent in the Partly Skimmed Milk Powder as per FSSA is





215. The minimum fat per cent as prescribed by FSSA in Cream Powder is





216. The minimum solubility in per cent by mass for Malted Milk Food as per BIS is





217. The maximum Insolubility Index for Extra Grade Spray Dried milk powder as per BIS is





218. The maximum Lactate content in Whole Milk Powder as per BIS specifications is





219. Human milk as compared to any other milk is better for infants younger than 6 months of age because





220. As compared to cow and buffalo milk, human milk contains higher amount of





221. Though human milk and cow milk contain almost equal amount of fat, the human milk fat is unique for





222. Human milk has a higher proportion of





223. The presence of bifidus factor in human milk is important as





224. While human milk is superior for the new born infant, human milk substitutes (HMS) play a necessary role in infant nutrition when





225. Use of hydrolyzed ?S-casein in Infant formula have no relevance as





226. Lactulose is incorporated into infant formulas to





227. Humanized baby foods for infants having age more than 6 months have





228. Malting is a process applied to cereal grains, in which the grains are





229. For microbial deterioration in milk powders to occur, aw should





230. The causes for milk powder to be bacteriologically unacceptable or even unsafe can be:





231. To ensure that a product is bacteriologically safe, the samples should





232. Contamination of the powder can occur at





233. Enzymatic hydrolysis of fat in the milk powders can take place





234. The style of management of a powder plant where the rank is given the responsibilities is known as





235. In the working of the milk powder plant, most important person is





236. The Productivity of the milk drying plant can be best possible by efficient utilization of





237. The most important points to be considered by a plant supervisor is





238. The safety in powder plant can be ensured by