Which of the following is NOT a type of grinder? | Agrigyan

• Aroma Profiles of Tender Coconut Water:
• Volatile Flavor Chemistry:
• The delicate fruity, sweet, and characteristic waxy aroma notes in tender coconut water are contributed primarily by volatile esters (e.g., ethyl octanoate, ethyl decanoate, butyl acetate) alongside lactones ($\delta$-lactones).
• Conclusion: Esters (Option 3).

Correct option: (3) Esters

• Microbial Biocatalysis for Natural Benzaldehyde Synthesis:
• Biotransformation by Pseudomonas taiwanensis:
• Genetically engineered strains of Pseudomonas taiwanensis (expressing mandelate pathway enzymes or toluene monooxygenase variants) selectively bioconvert aromatic substrates (such as styrene, toluene, or benzyl alcohol) into natural benzaldehyde (almond flavor).
• Conclusion: Pseudomonas taiwanensis (Option 4).

Correct option: (4) Pseudomonas taiwanensis

• Major Bioactive Compound in Black Pepper (Piper nigrum):
• Pungency & Flavor Chemistry:
• Piperine is the major pungent alkaloid ($4 - 9\%$) responsible for the characteristic biting taste of black pepper.
• Terpene hydrocarbons (pinene, limonene, caryophyllene) contribute volatile aroma, but Piperine is universally recognized as the signature chemical constituent of black pepper.
• Conclusion: Piperine (Option 4).

Correct option: (4) Piperine

• Determinants of Flavor Formation in Fermented Dairy Foods:
• Fermentation Environmental Parameters:
• Starter culture metabolic pathways (proteolysis, glycolysis, citrate utilization) are profoundly sensitive to temperature and incubation environment.
• Precise temperature governs the balance between lactic acid production and aroma volatiles (diacetyl, acetaldehyde, acetoin, 2,3-butanediol).
• Conclusion: Temperature and humidity during fermentation (Option 1).

Correct option: (1) Temperature and humidity during fermentation