Laboratory Report

文字方塊文字方塊AS1 COURSE 4010

FOOD & NUTRITION BASICS

文字方塊LABORATORY REPORT

LAB 1 CARBOHYDRATES

Year 2019 Sem 2

DUE DATE Next FNB practical

NAME (CAPITALS) CHEUNG KING TO GROUP LETTER____F______

This work is the product of my own efforts and has not been copied from any other sources except where full acknowledgement has been given.

SIGNED________________________________________ Student No.___20088441___

分頁符號

Introduction:

Carbohydrates are the human energy source. The experiment is to examine the properties of carbohydrate such as physical property.

Observation:

The result shows that the saturation point of glucose is very high, which means it is highly soluble to water. Galactose is quite soluble in water. In the experience of making fudge, the sugar melt and finally form into solid. Which is implying the properties of sugar crystallization.

Questions:

Q1)

Volume of sugar:

(total vol. of beaker + water + sugar) - (total vol. of beaker + water)

Galactose: [(38.87+9.85+sugar) - (38.87+9.85)]/10ml = 0.677 mg/ml

Glucose: [(39.25+10.55+sugar) - (39.25+10.55)]/10ml = 0.914 mg/ml

From the results, as glucose is highly soluble in water, so that it can easily dissolve in blood to generate energy. Also, galactose is quite soluble in order to be abundance in human diet.

Compared with published values, Dehn, W.M. mention that the solubility of galactose is about 68.3g per 100ml of water (2). For glucose, Mark Bishop has shown that the solubility is about 91g per 100ml of water (1).

Q2)

My first detection of a noticeable taste for:

Sucrose: 6

Maltose: 10

Glucose: 8

First detection of a noticeable taste of groupmates Yau Chung Sum for:

Sucrose: 6

Maltose: 10

Glucose: 8

First detection of a noticeable taste of groupmates O Hoi Man for:

Sucrose: 6

Maltose: 10

Glucose: 4

First detection of a noticeable taste of groupmates Hung Yeung Sing for:

Sucrose: 3

Maltose: 2

Glucose: 5

Q3)

My first detection of a noticeable taste for:

Salt: 2

First detection of a noticeable taste of groupmates Yau Chung Sum for:

Salt: 2

First detection of a noticeable taste of groupmates O Hoi Man for:

Salt: 4

First detection of a noticeable taste of groupmates Hung Yeung Sing for:

Salt: 2

Compared