Tissue culture of Pak-Bung

Tissue culture of Pak-Bung

Abstracts of the Articles Printed in Hakkokogaku Kaishi Vol. 65, 19871 247 of the Articles Printed in Hakkokogaku Kaishi Abstracts Vol. 65, No. 2...

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Abstracts of the Articles Printed in Hakkokogaku Kaishi

Vol. 65, 19871

247

of the Articles Printed in Hakkokogaku Kaishi

Abstracts

Vol. 65, No. 2 (1987) The Characterization

of Growth of Pae udamonas

under High Dissolved

oeruglmoaa

centration. SEICOSATO,LEE HANG Woo, SUI~KUNI M~XATAU, and JoJr T AKAHASHI(Znstitufeof Applied Biochemistry,

University

of

chain length.

Oxygen Con-

TJukuba,

Sakura-mura,

Niihari-gun, Zbaraki 305, Japan) Hakkokogaku 65: 109-112. 1987. The characterization of growth of Pseudomonas aaruginosa under high dissolved oxygen (DO) con-

The Quality of Aroma Components in Fermented Awamd

Mash by Awmue-i Yeasts Isolated in -NoteHI~AYUU NAKATA, MAURU 19804981. HOSAU, HIROSHI SAMH, KATASHI HIROS&, and TAKASHI SAKAI (Department

centration was investigated. The decrease of cellular yield under high DO concentration was not due to autolysis

of cells.

The generation

of carbon

per unit cell mass and the cellular creased

with decreasing

cellular

dioxide

maintenance

yield.

in-

It was con-

cluded that the amount of glucose which was oxidized

of Brewing

and Fer-

mentation, Tokyo Unirersi~ of Agriculture, 1-l-l Sakaragaoka, Setagaya-ku, Tokyo 156, Jam) Hakkokogaku 65: 121-126. 1987. Aroma components in awamori mash were quantified with gas chromatography. The iso-butyl alcohol in fermented awamori mash by awamori ye&s isolated in 1980-1981 was produced at higher concentrations than by other industrial yeasts. Therefore, the A/B (iso-amyl alcohol/iso-butyl

alcohol) ratio was less than

to carbon dioxide and water increased for increased cellular maintenance under high DO concentration, therefore, the cellular yield decreased.

alcohol produced more than 15.9%

Microbial

the aruamosi mash. These aroma components were characteristics of aroarnori yeasts isolated in 1988-1981.

Treatment

of Crude Oil on the Sea

1.99.

These

yeasts forming

high

concentrations

of

of the alcohol in

Surface Using Nutrient Microcapsules. AKIHIKO MURAKAMI, HIROSHI OKUMURA, SHINZO OYI, Characteristic Behavior of the Respiration Pause Axrro YAMANE, and TAICAHU(OSUGUIA~A (Deof Erwinia carotovora. -NoteSATOSHI Fuxupartment of Chemical Engineering, Facula of Eigineering, OKA and YOSHINARI KOBAYASHI (Government Tokyo University of Agriculture and Technology, Industrial Research Institute, Shikoku Z-3-3, HananoNakamachi, Koganei 184, Japan) Hakkokogaku 65: 113-120. 1987. Pseudomonas sp. treatment of crude oil film spread over the sea surface was better with the sustained supply of encapsulated nutrient salts. Four crude oils, Arabian light, Berri, Murban, and Khafji, were investigated. was improved

The percentage to 4558%

of removal of crude oil

by the microcapsules

com-

pared with 12-19% with no microcapsules. The total dosage required was 12% of crude oil with the lapse of seven days between supplies.

the successive

Samples of crude oil were fractionated into saturated, aromatics, asphaltcne, and column residue fractions

to investigate

the effectiveness

of microbial

decomposition

by column chromatography. Activated The saturated alumina was used as a packing reagent. fraction was most decomposed, followed by the aromatics, however, the asphaltene and column residue n-A&arms among the were only sparsely decomposed. saturated fraction were distributed from 14 to 32 carbon atoms, and decomposition

was not dependent

miya-cho, Takamatsu 65: 127-130. 1987. Erzuinia carotovora GIR

761,

Japan)

Hakkokogaku

1044 (FERM

P-7576)

found to show characteristic respiration during cultivation. The bacterium was

was

behavior cultivated

in a jar-fermentor on basal medium using pectin as the carbon source, and the DO course of the culture solution traced. About nine hours after inoculation the DO increased rapidly for a few minutes; this was caused by a respiration likely related medium. Tissue

pause.

This

phenomenon

to the degradation

Culture

of Pak-Bung.

of pectin

-Note-

is most in the

Sustmu

HASHIMOTO,KENJI FUR~XAWA, and SURATWADEE JIWAJ’NDA (De&zrtment of Envinmmcntal Engineering, Faculty of Engineering, Osaka University, 2-I YamaaIz Oka, Suita-shi, Osaka 565, Jafian) Hakkokogaku 65: 131-135. 1987. Fundamental

studies on the plant tissue culture

of pak-bung, which we have used as a nutrient absorber on the d in advanced wastewater treatment, were conducted.

Abstracts of the Articles Printed in Hakkokogaku Kaishi

248

Pretreatment

by

steam-explosion

at

29 kg/ems

The septum was proven to be the best explant source Callus was easily for the tissue culture of pak-bung.

(231°C) for 1.5 min made both bagasse and rice straw

formed from the septum medium which contained

Pretreated

portion on a modified MS 1 mg/f of naphthaleneacetic

acid (NAA) and benzyladenine (BA), and root and shoot redifferentiation were observed after 50 days of incubation. The capacity for callus formation and organ redifferentiation on two-times-diluted modified MS

(l/2 MS)

medium was better

than that on MS

medium. The media favored for callus formation were modified MS medium (NAA 1 mg/l, BA 1 mg/Z) and

most effective

for enzymatic

under

yield was proportional to the ratio of cellulase-holocellulose of the substrate up to 20% (cellulase-substrate ratio:

87

FPU/g).

Above

Desulfonation

rate

of pak-bung

callus

on

specific

l/2 MS

agar

growth medium

(NAA 0.1 mg/l, 2,4_dichlorophenoxyacetic

acid 1.0 mg/

I, BA 0.5 mg/l) was 2.5 times greater

than that on

also high.

Pak-bung

callus

was apt

to change

its

Production

Bagasse and Rice Straw.

from -Note-

Steam-Exploded SHINGO ANDO,

OSAMU OHNO, KOICHI KI~OTO, and SHIRO HANAI

(Takara Shuzo Co., Ltd., Shimogyo-ku, Kyoto 600-91, Jagan) Hakkokogaku 65: 137-141. 1987.

of 20%,

the

and

Insolubilization sp.

-Note-

of

LignoTAKAAKI

(Department of Agricultural Chemistry, Faculty of Horticulture, Chiba University, Mats&, Matsudo-shi, Chiba 271, Japan) Hakkokogaku 65: 143-145.

1987.

It was presumed that the removal of lignosulfonate from

a

culture

medium

by Penicillium sp.

0-7W

(Hakkokogaku, 63, 1, 1985) was due to its desulfonation and a drop of pH during partially

Ethanol

ratio

FUJII, HIROFIJMI SHINOYAMA, and MINORU YABUKI

l/2 MS medium (NAA 1 mg/l, BA 1 mg/l), but the callus formed was fragile and its water content was colour to brown, but this browning could be retarded by the addition of ascorbic acid and citric acid.

the

increasing rate of ethanol yield became less.

sulfonate by Penicillium

mg/Z). The

bagasse was

bagasse could be converted into 65 g/l ethanol (ethanol yield: 75.6%) by yeast Saccharomycescereuisiae. Ethanol

medium

0.05-1.0

by cellulase.

easier to saccharify than rice straw, and steam-exploded

l/2 MS medium (NAA 1 mg/Z, BA 1 mg/l), and the medium favored for organ redifferentiation was l/2 MS (BA

hydrolysis

the same conditions,

desulfonated

the cultivation.

A lignin

by the fungus accumulated

on

and in mycelial pellets as a compound in irregular shapes. The desulfonated lignin was released from the pellets by washing them with a dilute sodium hydroxide This lignin easily precipitated in acidic solution. solution.