Q.19
ICAR AIEEA PG Dairy Technology 09 July 2023 (Shift 1) Paper
Match the Following
Match List-I with List-II:
\textbf{List-I (Microorganism)}\textbf{List-II (Butter defect)}
(A) Achromobacter putrefaciens(I) Rancid flavour
(B) Pseudomonas ichthyosmia(II) Putrefactive taint
(C) Pseudomonas nigrificans(III) Fishy flavour
(D) Achromobacter lipolyticum(IV) Black discolouration

Choose the correct answer from the options given below:

सूची-I को सूची-II से सुमेलित करें:
\textbf{सूची-I (सूक्ष्मजीव)}\textbf{सूची-II (मक्खन दोष)}
(A) एक्रोमोबैक्टर प्यूट्रीफेशियंस (Achromobacter putrefaciens)(I) बासी/दुर्गंधयुक्त स्वाद (Rancid flavour)
(B) स्यूडोमोनास इक्थियोस्मिया (Pseudomonas ichthyosmia)(II) सड़न दोष (Putrefactive taint)
(C) स्यूडोमोनास निग्रीफिकेंस (Pseudomonas nigrificans)(III) मछली जैसा स्वाद (Fishy flavour)
(D) एक्रोमोबैक्टर लिपोलाइटिकम (Achromobacter lipolyticum)(IV) काला रंग विकार (Black discolouration)

नीचे दिए गए विकल्पों में से सही उत्तर चुनें:

Microbiological defects in butter:

  • Achromobacter putrefaciens produces isovaleric acid resulting in putrefactive taint (surface taint) in butter (II).
  • Pseudomonas ichthyosmia produces trimethylamine from choline, causing a fishy flavour defect in butter (III).
  • Pseudomonas nigrificans produces dark melanoid pigments, causing black discolouration on the surface of salted butter (IV).
  • Achromobacter lipolyticum secretes strong lipases that hydrolyze milk triglycerides to release free fatty acids, producing rancid flavour (I).
Therefore, option 3 ((A) - (II), (B) - (III), (C) - (IV), (D) - (I)) is the correct answer.

मक्खन में सूक्ष्मजीवी दोषों का मिलान:

  • एक्रोमोबैक्टर प्यूट्रीफेशियंस (Achromobacter putrefaciens) मक्खन में सड़न दोष (Putrefactive taint) पैदा करता है $\to$ (II)।
  • स्यूडोमोनास इक्थियोस्मिया (Pseudomonas ichthyosmia) मछली जैसा स्वाद (Fishy flavour) उत्पन्न करता है $\to$ (III)।
  • स्यूडोमोनास निग्रीफिकेंस (Pseudomonas nigrificans) मक्खन पर काला रंग विकार (Black discolouration) लाता है $\to$ (IV)।
  • एक्रोमोबैक्टर लिपोलाइटिकम (Achromobacter lipolyticum) वसा अपघटन द्वारा बासी/दुर्गंधयुक्त स्वाद (Rancid flavour) उत्पन्न करता है $\to$ (I)।
अतः विकल्प 3 सही उत्तर है।
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Packaging Materials & Systems: Flexible Laminates, Aseptic Packaging, MAP, Vacuum Packaging & Quality Evaluation Thermal Processing of Fluid Milk: LTLT, HTST Pasteurization, UHT, Sterilization & ESL Systems Technology of Frozen Dairy Desserts: Ice Cream Mix Formulation, Freezing, Overrun, Hardening & Novelties Dairy By-Product Utilization & Whey Processing: Casein, Caseinates, Whey Powder, WPC, WPI & Lactose Recovery Sensory Evaluation of Dairy Products: Discrimination Tests, Hedonic Scaling, Scoring Systems & Flavor Defect Profiling Concentrated Milks: Evaporated Milk, Sweetened Condensed Milk, Standardization & Pilot Sterilization Fluid Milk Reception, Chilling, Clarification, Standardization & Homogenization Ghee Technology: Traditional, Cream-Butter, Pre-Stratification & Continuous Methods, Packaging & AGMARK Dried Milks: Roller & Spray Drying, Atomization, Powder Properties, Instantization & Specialty Infant Formulas Cheese Manufacture: Coagulation, Curd Handling, Cheddaring, Pressing, Salting & Curing of Hard & Semi-Hard Cheeses Butter Technology: Batch Churning, Continuous Butter Making (CBM), Working, Salting & Rheology सक्रिय Traditional Heat-Desiccated & Acid-Coagulated Indian Dairy Products: Khoa, Paneer, Chhana & Their Sweets Membrane Filtration in Dairy Processing: Reverse Osmosis (RO), Nanofiltration (NF), Ultrafiltration (UF) & Microfiltration (MF) Soft, Acid-Coagulated & Mold-Ripened Cheeses: Cottage, Mozzarella, Camembert, Roquefort & Fresh Cheeses Technology of Fermented & Probiotic Milks: Dahi, Yoghurt, Cultured Buttermilk, Lassi, Kefir & Koumiss Technology of Fat-Rich Products: Cream Separation, Processing, Neutralization & Cream Varieties Traditional Fermented, Fat-Rich & Frozen Indian Dairy Confections: Shrikhand, Rabri, Kulfi & Ghee Residue
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