|
AIJN Values for Grapefruit Juice |
|||||||
|
Absolute Quality Requirements |
|||||||
|
Standard Values |
range |
||||||
|
min. |
1,0450 |
Relative Density 20°C |
|||||
|
min. |
10,0 |
corresponding Brix° |
|||||
|
meq/l |
120 |
290 |
Titratable Acidity pH (8.1) |
||||
|
g/l |
8,0 |
20,0 |
Citric Acid (enzymatic) |
||||
|
g/l |
max. |
3,0 |
Ethanol |
||||
|
g/l |
max. |
0,4 |
Volatile Acidity as Acetic Acid |
||||
|
g/l |
max. |
0,5 |
Lactic Acid |
||||
|
mg/l |
min. |
200 |
L(+) Ascorbic Acid |
||||
|
mg/l |
max. |
10.0 |
SulphurousAcid |
||||
|
mg/l |
max. |
30 |
Sodium (Na) |
||||
|
mg/l |
max. |
10 |
Nitrates (NO3) |
||||
|
mg/l |
max. |
0,1 |
Arsenic (As) |
||||
|
mg/l |
max. |
0,2 |
Lead (Pb) |
||||
|
mg/l |
max. |
5,0 |
Copper (Cu) |
||||
|
mg/l |
max. |
5,0 |
Zinc (Zn) |
||||
|
mg/l |
max. |
5,0 |
Iron (Fe) |
||||
|
mg/l |
max. |
1,0 |
Tin (Sn) |
||||
|
mg/l |
max. |
0,01 |
Mercury (Hg) |
||||
|
mg/l |
max. |
0,02 |
Cadmium (Cd) |
||||
|
g/l |
20 |
50 |
Glucose |
||||
|
g/l |
20 |
50 |
Fructose |
||||
|
max. |
1,02 |
Glucose/Fructose Ratio |
|||||
|
g/l |
5 |
40 |
Sucrose |
||||
|
g/l |
25 |
40 |
Non-Sugar Extract |
||||
|
g/l |
2,3 |
4,5 |
Ash |
||||
|
mg/l |
|
1000 |
2500 |
Potassium (K) |
|||
|
mg/l |
50 |
160 |
Calcium (Ca) |
||||
|
mg/l |
70 |
|
160 |
Magnesium (Mg) |
|||
|
mg/l |
100 |
200 |
Total Phosphor (P) |
||||
|
mg/l |
max. |
150 |
Sulfates (SO4) |
||||
|
mg/l |
140 |
350 |
Isocitric Acid |
||||
|
50 |
95 |
Citric/Isocitric Ratio |
|||||
|
g/l |
0,2 |
1,2 |
L-Malic Acid |
||||
|
14 |
30 |
Formol (0,1 N NaOH/100ml) |
|||||
|
mg/l |
max. |
1200 |
Hesperidin (Davis) |
||||
|
mg/l |
max. |
700 |
Total Pectin |
||||
|
mg/l |
max. |
500 |
Water-soluble Pectin |
||||
|
AIJN Values for Grapefruit Juice |
|||
|
Absolute Quality Requirements |
|||
|
range (mg/l) |
FREE AMINOACIDS |
||
|
400 |
800 |
Aspartic Acid |
|
|
12 |
36 |
Threonine |
|
|
105 |
210 |
Serine |
|
|
240 |
800 |
Asparagine |
|
|
80 |
235 |
Glutamic Acid |
|
|
max. 75 |
Glutamine |
||
|
200 |
1400 |
Proline |
|
|
11 |
38 |
Glycine |
|
|
62 |
180 |
Alanine |
|
|
12 |
35 |
Valine |
|
|
max. 10 |
Methionine |
||
|
1 |
10 |
Leucine |
|
|
1 |
10 |
Isoleucine |
|
|
max. 18 |
Tyrosine |
||
|
9 |
46 |
Phenylalanine |
|
|
180 |
570 |
g-Aminobutirric Acid |
|
|
1 |
26 |
Ornitine |
|
|
12 |
58 |
Lysine |
|
|
2 |
25 |
Histidine |
|
|
240 |
830 |
Arginine |
|