Answer / priyankar talukdar

The essential steps in winemaking can be summarized as follows:
 Extract the flavor and aroma from the base ingredients by chopping, crushing, pressing, boiling or soaking them.
 Add sugar, acid, nutrients, and yeast to the fermentation media or liquor to achieve the proper ratio and ferment, covered, for 3 to 10 days in a primary fermentation vessel (crock, jar or polyethylene pail) at 70-75 degrees Fahrenheit.
 Strain off the liquid from the pulp, put it (the liquid) into a secondary fermentation vessel (a carboy or jug), fit a fermentation trap (airlock) on the mouth of the bottle, and allow fermentation to proceed at 60-65 degrees Fahrenheit until all bubbling ceases (after several weeks).
 Siphon the wine off the sediments (lees) into another clean secondary fermentation vessel. Reattach the fermentation trap. Repeat after another one or two months and again before bottling.
 When wine is clear and all fermentation has stopped, siphon into wine bottles and cork the bottles securely. Leave corked bottles upright for 3-5 days and then store them on their side at 55 degrees Fahrenheit for six months (white wine) to a year (red wine) before sampling. If not up to expectations, allow to age another year or more.

Answer / nanda kumar

In specification with grape wine first the grapes are
squashed into mash and then little yeast is added into it
and it is left for a minimum time at a specific temperature
for bacterial decomposition where yeast acts as a bacterial
catalyst and the chemical reaction converts it into grape
wine.

THERMODYNAMIC - EXAMPLE 10.3 : According to Raoult's law, the pressure when vapor is completely condensed, P = x(1) P(1) + x(2) P(2) ... + x(n) P(n) when x(1), x(2) ... x(n) are the mole fractions of component 1, 2 ... n and P(1), P(2) ... P(n) are the vapor pressures of component 1, 2 ... n. A vapor at 74 degree Celsius containing 70 mole % water and 30 mole % ethanol is to be completely condensed. At the temperature of 74 degree Celsius vapor pressure is 0.38 atm for water and 0.97 atm for ethanol. What is the minimum pressure the compressor must be operated?

1 Answers  

---

Why in a continuous plant for a Hot standby screw pump system the interlock for auto starting of the other pump ( when the running pump stopped suddenly) is given with header pressure only? why not with flow rate or current of the pump?

0 Answers   Haldia,

---

Define octane number?

0 Answers  

---

I am currently doing my btech in computer science in Coimbatore.I had intererest to do btech in chemical enginerring but couldnt get a seat. Now what are my options ,scope and future if i take mtech in chemical enginerring? And can i apply for any deemed colleges for mtech chemical enginerring through gate taking my present state into consideration(btech in cse and mtech in chemical enginerring)

0 Answers  

---

what is difference between open loop system & close loop system by overview.

1 Answers   TCL,

---

How many days we are store our cement bags?

4 Answers  

---

how to find a liquid flow's direction in a closed pipe by merely seeing it(without pressure gauges)...

4 Answers  

---

ENGINEERING NUMERICAL METHODS - EXAMPLE 19.1 : Solve the simultaneous equation using simple Excel program : r + s - t = 7, 2r - s = 0, 3r + 2t = 15. Explain the use of functions of MINVERSE and MMULT together with the keyboard C (Ctrl) + S (Shift) + E (Enter).

1 Answers  

---

Why LMTD is calculated in Heat -Exchanger problems..Why dont we take average temperature??

4 Answers   Aker Solutions,

---

Explain the difference between cfm (cubic feet per minute) and scfm (standard cubic feet per minute)?

0 Answers  

---

BIOPROCESS ENGINEERING - EXAMPLE 14.3 : The kinetic behavior of an enzyme could be described using Michalis - Menten equation : Vo = Vmax [S] / (Km + [S]). Derive this equation from [ES] = [E]total [S] / (Km + [S]), Vmax = Kcat [E]total, Vo = Kcat [ES].

1 Answers  

---

Jspl question paper for freshers requirements chemical engineering diploma

0 Answers  

---