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Development of ganoderma Iucidum on soft and hard wood logs and determination of organic germanium and ganodric acid content of the fruiting body produced

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ABSTRACT : The objectives of this experiment were to study the growth and development of fruiting body of the two Ganoderma lucidumisolates on log of the soft wood Paraserianthes falcatariaand the hard wood Shoreasp., and determination of organic germanium and crude ganoderic acid content of the fruiting body produced. The two Ganoderma lucidumisolates used were one Indonesian native (Indonesia isolate) and another isolate was purchased from Fungi Perfecti, USA (commercial isolate).

The development and quality of the primordium and fruiting body of the mushroom, in general, were influenced by the isolates used. The types of wood, however, had no effect on the quality of the primordium and fruiting body produced. The Indonesian isolate produced better fruiting body compared to that of the commercial isolate. The development of fruiting body from primordium, however, was low for the two isolates tested. In general, only about one third of the primordium developed further into mature fruiting bodies, except for the commercial isolate grown on the soft wood medium in which more than 60% of the primordium developed into mature fruiting body. Apart from producing normal fruiting body, the commercial isolate also produced an abnormal one, which had a white mature pileus, whereas the normal one was brownish red.

The organic germanium concentration of the fruiting body produced on the hard wood, in general, was higher than that of grown on the soft wood. The fruiting body from commercial isolate had higher organic germanium concentration compared to that of Indonesian isolate in both wood types. The two isolates used, however, had almost the same value of the crude ganoderic acid concentration in both types of wood tested. The Indonesian isolate had higher total yield of both organic germanium and crude ganoderic acid of the fruiting body produced compared to that of the commercial isolate.

KEYWORDS : Ganoderma lucidum, Paraserianthes falcataria, Shoreasp., mushroom primordium, fruiting body, organic germanium, and crude ganoderic acid.

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[image:4.595.50.546.661.755.2]

Table 1.The average of minimal time required for primordium development and production of fruiting body from primordium of the two Ganoderma lucidumtested.

Log

Primordium developed (Day after inoculation)

Fruiting body developed (Day after primordium developed)

G.lucidum (Commercial)

G. lucidum (Indonesia)

G.lucidum (Commercial)

G. lucidum (Indonesia)

Shoreasp. 34.7b 122.7a 15.3a 50.8b

Paraserianthes falcataria 96.7a 125.0a 17.2a 15.7a

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[image:5.595.53.550.126.231.2]

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Table 2.The average number of fungal primordium and fruiting body produced by Ganoderma lucidumper log in the duration

of 6 months after inoculation*.

Log Isolate Number of

Primordium

Number of Fruiting Body

Percentage of Primordium Developed to Fruiting Body

(%)

Shoreasp. G. lucidum (Commercial) 10.7a 3.7a 34.6a

G. lucidum(Indonesia) 6.0a 1.7b 28.3b

Paraserianthes falcataria G. lucidum(Commercial) 5.7a 3.7a 64.9c

G. lucidum(Indonesia) 5.0a 1.7b 34.0a

[image:5.595.50.549.525.625.2]

Data followed by the similar letter are not significantly different at P< 0.05. *Primordium and fruiting body produced after 6 months were not included.

Table 3.Quality of fruiting body produced by the two isolates of Ganoderma lucidumtested.

Log

Average Fresh Weight of Individual Fruting Body

(g)

Average Dry Weight of Individual Fruting Body

(g)

Average Diameter of Individual Fruting Body

(cm) G.lucidum (Commercial) G.lucidum (Indonesial) G.lucidum (Commercial) G.lucidum (Indonesia) G.lucidum (Commercial) G.lucidum (Indonesia)

Shoreasp. 6.4a 26.3b 1.6a 10.0b 3.9a 7.0b

Paraserianthes falcataria 7.9a 30.1b 1.9a 9.6b 4.6a 8.3b

Data followed by the similar letter are not significantly different at P< 0.05.

Table 4. Concentration and total content of the organic germanium in the fruiting body per log of the two isolates tested.

Log

Concentration (ppm) Total Content (mg)

G.lucidum (Commercial) G. lucidum (Indonesia) G.lucidum (Commercial) G. lucidum (Indonesia)

Shoreasp. 77.4 6.68 0.01 0.07

Paraserianthes falcataria 5.37 2.25 0.01 0.02

[image:5.595.51.543.675.756.2]
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Shoreasp. 2.05 2.61 0.033 0.260

Paraserianthes falcataria 2.03 3.11 0.041 0.309

[image:6.595.51.543.114.197.2]
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Gambar

Table 1. The average of minimal time required for primordium development and production of fruiting body from primordiumof the two Ganoderma lucidum tested.
Table 2. The average number of fungal primordium and fruiting body produced by Ganoderma lucidum per log in the durationof 6 months after inoculation*.
Table 5. Concentration and total content of the crude ganoderic acid in the fruiting body per log of the two isolates tested.

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