Product Development: Nutritional Value, Processing and Utilization of Indigenous Fruits from the Miombo Ecosystem - Indigenous Fruit Trees in the Tropics: Domestication, Utilization and Commercialization - page 300

Table 16.6. pH, acidity and mineral contents (g/ml; mean ± standard deviation, range) of some indigenous fruit products.

Variable

Fruit Total

product and Sample soluble

species size ( n ) Calcium Magnesium Potassium Sodium Zinc Copper Phosphorus pH Acidity (%) solids (%)

Juices
Uapaca kirkiana

12.0 ± 2.6 b 57.6±22.7 a 140.3±31.0 c 536.0±55.4 e 21.4±1.5 c

9 54.9±6.2 - - 3.55±0.27 1.04 0±14 000

(9.1-16.3) (31.6-105.3) (98.1-178.8) (43.4-64.7) (459.2-617.1) (3.23-4.22) (0.99-1.32) (20.0-24.7)

37.1±6.4 a 79.3±11.4 a 382.8±17.1 b 240.8±42.2 d 14.3±1.2 d

Adansonia digitata 15 69.9±10.2 4.54±0.15 4.90±0.52 3.105±0.04 1.92±0.25

(27.0-45.7) (61.2-95.1) (353.9-396.4) (57.9-90.4) (4.35-4.81) (4.03-5.28) (202.6-307.9) (3.07-3.21) (1.63-2.36) (13.2-16.3)

Strychnos
cocculoides

3.67±1.14 d 2809.1±160.2 a 550.2±29.5 c 32.3±1.9 a

6 37.8±5.5b 13.8±5.5 2.69±0.45 - 3.53±0.05 1.18±0.11 )

(2.5-5.3) (33.0-46.7) (2596-3000) (7.0-22.0) (2.13-3.28) (518.4-597.4) (3.48-3.61) (1.07-1.32) (30-34)

10.4±2.4 c 40.2±7.1 b 61.1±12.9 d 26.3±1.5 b

Mango 6 26.8±4.4 2.13±0.33 5.87±0.97 618.8±45.4 3.58±0.10 1.10±0.13

(9.4-12.7) (4.1-50.3) (51.0-77.9) (22.0-30.5) (1.74-2.43) (4.81-6.70) (571.1-676.3) (3.48-3.7) (0.95-1.25) (25-28.3)

Jams
Uapaca , sweet 3 81.8±0.35 132.02±0.41 310.23±0.00 00 224.75±0.00 3.48±0.00 - 559.26±13.09 4.64±0.01

Uapaca , sour 3 88.5±1.35 140.53±0.00 323.18±0.00 00 234.40±1.52 2.57±0.14 - 475.93±0.00 0 4.50±0.01

Strychnos , sour 3 49.8±0.7 164.57±0.83 5870.15±0.00 00 105.73±1.52 4.38±0.14 - 809.26±26.19 3.41±0.01

Strychnos , sweet 3 53.15±1.35 152.26±0.83 5627.35±0.00 00 117.52±0.00 5.79±0.14 - 911.11±13.09 3.40±0.01

Strychnos , sweetest 3 46.46±0.00 152.84±0.00 6023.01±0.00 00 110.02±1.52 5.19±0.14 - 855.56±13.09 3.53±0.01

Source of recommended daily allowances: NRC/NAS (1989).
-, below the detection limit of the spectrophotometer (0.5 g/l).
Values with the same superscript letter in the same column are not significantly different ( P > 0.05).
Source: Saka et al . (2007).