scholarly journals Mechanical characteristics of buckwheat noodles made with blue-green alga, ishi-kurage (Nostoc commune Vauch.)

Fagopyrum ◽  
2020 ◽  
Vol 37 (2) ◽  
pp. 29-36
Author(s):  
Yuya Asami ◽  
Mitsuki Zenno ◽  
Keina Mikami ◽  
Hikaru Osuga ◽  
Rui Setoyama ◽  
...  
Keyword(s):  
Mechanical Characteristic ◽  
Mechanical Characteristics ◽  
Study Finding ◽  
Mechanical Analysis ◽  
The Other ◽  
Globulin Fraction ◽  
Blue Green Alga ◽  
Nostoc Commune ◽  
Blue Green Algae ◽  
Endogenous Protein

The present study was conducted to clarify the effect of a kind of blue-green algae, i.e., ishi-kurage , on the mechanical characteristics of buckwheat noodles. Mechanical analysis of buckwheat noodles with ishi-kurage  showed that incorporation of ishi-kurage  into buckwheat noodles enhanced breaking stress and energy. Sensory evaluation with human panels showed that buckwheat noodles with ishi-kurage  were more preferred when compared with noodles without ishi-kurage. On the other hand, incorporation of ishi-kurage  into buckwheat noodles enhanced decreased solubility of the albumin plus globulin fraction. The present study finding suggests that the endogenous protein may be an important factor responsible for the mechanical characteristic of buckwheat noodles with ishi-kurage.

scholarly journals Mechanical characterization of buckwheat noodles mixed with seaweed (fu-nori)

Fagopyrum ◽  
1970 ◽  
Vol 36 (1) ◽  
pp. 5-9
Author(s):  
Yuya Asami ◽  
Sena Ooto ◽  
Masanori Kitamura ◽  
Kenta Sakanashi ◽  
Tesshu Tamai ◽  
...  
Keyword(s):  
Mechanical Characteristics ◽  
Mechanical Characterization ◽  
Mechanical Analysis ◽  
Breaking Stress ◽  
Common Buckwheat ◽  
Endogenous Protein

The present study was conducted to clarify the effect of incorporation of seaweed, i.e.funori (Gloiopeltis tenax(Turner)J. Agardh) into buckwheat noodles on their mechanical characteristics. Mechanical analysis of buckwheat noodles withfunori showed that incorporation of funori into buckwheat noodles enhanced breaking stress and energy. On the otherhand, incorporation of funori into buckwheat noodles enhanced decreased solubility of the albumin plus globulin frac­tion. The present study findings suggest that the endogenous protein may be an important factor responsible for themechanical characteristics of buckwheat noodles with seaweed.Received: December 5, 2018; accepted: January 30, 2019Keywords: common buckwheat, mechanical characteristics, noodles, seaweed

The Nature of Rapidly Extracted Phycocyanin from the Blue-Green Alga Plectonema Boryanum

1971 ◽  
Vol 29 ◽  
pp. 366-367
Author(s):  
M. Kessel ◽  
R. MacColl
Keyword(s):  
Self Assembly ◽  
Analytical Ultracentrifugation ◽  
Uranyl Acetate ◽  
The Self ◽  
Major Protein ◽  
Subunit Structure ◽  
Blue Green Alga ◽  
Thin Sections ◽  
Blue Green Algae ◽  
Cacodylate Buffer

The major protein of the blue-green algae is the biliprotein, C-phycocyanin (Amax = 620 nm), which is presumed to exist in the cell in the form of distinct aggregates called phycobilisomes. The self-assembly of C-phycocyanin from monomer to hexamer has been extensively studied, but the proposed next step in the assembly of a phycobilisome, the formation of 19s subunits, is completely unknown. We have used electron microscopy and analytical ultracentrifugation in combination with a method for rapid and gentle extraction of phycocyanin to study its subunit structure and assembly.To establish the existence of phycobilisomes, cells of P. boryanum in the log phase of growth, growing at a light intensity of 200 foot candles, were fixed in 2% glutaraldehyde in 0.1M cacodylate buffer, pH 7.0, for 3 hours at 4°C. The cells were post-fixed in 1% OsO4 in the same buffer overnight. Material was stained for 1 hour in uranyl acetate (1%), dehydrated and embedded in araldite and examined in thin sections.

Changes in protein spectra of bean seed during germination

1970 ◽  
Vol 48 (7) ◽  
pp. 1347-1350 ◽  
Author(s):  
Pei-Show Juo ◽  
G. Stotzky
Keyword(s):  
Acetic Acid ◽  
Phaseolus Vulgaris ◽  
Basic Protein ◽  
The Other ◽  
Globulin Fraction ◽  
Bean Seed ◽  
Basic Proteins ◽  
Number Of Components ◽  
Red Kidney Bean ◽  
Protein Spectra

Globulins, albumins, and basic proteins were extracted from seeds of red kidney bean (Phaseolus vulgaris), and their distribution was in a ratio of about 3:2:1, respectively. The globulin fraction constituted a major portion of the reserve proteins and was hydrolyzed rapidly during germination. More than 90% of the basic proteins, extractable with 0.05 N acetic acid, disappeared 12 days after germination. Although the decrease in total albumin was not as marked as with the other two fractions, a number of components of this fraction disappeared during the early stages of germination, but several new components were detected about 8 days after germination. The apparent synthesis of new globulin components during germination was also observed, but no synthesis of basic protein could be detected.

Creativity Thinks on the Significances of Geobiology about the Coal Series

2014 ◽  
Vol 1065-1069 ◽  
pp. 114-118
Author(s):  
Shuo Fu Tian ◽  
Chao Jin Lu ◽  
Yuan Wang
Keyword(s):  
Green Algae ◽  
Higher Plants ◽  
The Other ◽  
Coal Bed ◽  
Geologic History ◽  
Blue Green Algae ◽  
Living Things ◽  
Coal Petrology ◽  
The Relationship ◽  
Lower Plants

It is the components, living things evolution processes, development environments, distribution layers and the earliest time for coal series formation that are investigated and studied in detail based on the author’s graduation thesis, the “Geobiology” , the “China coal petrology” and the other’s some references in this paper. And it is considered that mainly two types of the Coal Series might be distinguish in the geologic history in China, respectively consisted of the lower organisms (especially the lower plants, blue-green algae) and higher organisms (especially the higher plants, pteridophyta, gymnosperms, Anthophyta). Meanwhile, the conclusions can be drawn that the development of the organisms is not only controlled by the environments, on the other hand, the environments and their sediments are also affected by the ecologies of the organisms. So the coal bed or coal series can be used as the marks of the environment explanation, perhaps having some Significances of Geobiology. In additional, the relationship with an unconformity or disconformity is discussed here, too.

scholarly journals Influence of Bio-Based Plasticizers on the Properties of NBR Materials

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2095 ◽  
Author(s):  
Md Mahbubur Rahman ◽  
Katja Oßwald ◽  
Katrin Reincke ◽  
Beate Langer
Keyword(s):  
Material Properties ◽  
Canola Oil ◽  
Mechanical Characteristics ◽  
Mechanical Analysis ◽  
Mechanical And Thermal Properties ◽  
Butadiene Rubber ◽  
Main Interest ◽  
Oxidative Aging ◽  
Monomer Ratio ◽  
Aging Properties

A high number of technical elastomer products contain plasticizers for tailoring material properties. Some additives used as plasticizers pose a health risk or have inadequate material properties. Therefore, research is going on in this field to find sustainable alternatives for conventional plasticizers. In this paper, two modified bio-based plasticizers (epoxidized esters of glycerol formal from soybean and canola oil) are of main interest. The study aimed to determine the influence of these sustainable plasticizers on the properties of acrylonitrile–butadiene rubber (NBR). For comparison, the influence of conventional plasticizers, e.g., treated distillate aromatic extract (TDAE) and Mesamoll® were additionally investigated. Two types of NBR with different ratios of monomers formed the polymeric basis of the prepared elastomers. The variation of the monomer ratio results in different polarities, and therefore, compatibility between the NBR and plasticizers should be influenced. The mechanical characteristics were investigated. In parallel, dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA) were performed and filler macro-dispersion was determined. Bio-based plasticizers were shown to have better mechanical and thermal properties compared to conventional plasticizers. Further, thermo-oxidative aging was realized for 500 h, and afterwards, mechanical characterizations were done. It was observed that bio-based plasticizers have almost the same aging properties compared to conventional plasticizers.

Fine structure of the thermophilic blue-green alga Synechococcus lividus Copeland. A study of frozen–fractured–etched cells

1972 ◽  
Vol 18 (2) ◽  
pp. 175-181 ◽  
Author(s):  
S. C. Holt ◽  
M. R. Edwards
Keyword(s):  
Green Alga ◽  
Lipid Bodies ◽  
Blue Green Alga ◽  
Etching Technique ◽  
Thin Sections ◽  
Blue Green Algae ◽  
Osmiophilic Granules ◽  
Freeze Etching ◽  
The Many ◽  
Synechococcus Lividus

The thermophilic unicellular blue-green alga, Synechococcus lividus, was studied by electron microscopy in thin sections and by the freeze-etching technique. Thin sections revealed subcellular structures like those observed by other authors in mesophilic blue-green algae. In the freeze-etched fractures similar results were obtained but, in addition, surface views of plasma and thylakoidal membranes were examined in detail. The many inclusions present in the freeze-etched preparations confirmed those displayed in thin sections and are interpreted as polyhedral, polyphosphate, and lipid bodies. Some unidentified osmiophilic granules and also phycobilisomes were seen.

scholarly journals Effective FE models for simulating the elasto-mechanical characteristics of forming machines

2020 ◽  
Vol 106 (7-8) ◽  
pp. 3505-3514
Author(s):  
Robert Tehel ◽  
Thomas Päßler ◽  
Markus Bergmann
Keyword(s):  
Numerical Simulations ◽  
Mechanical Characteristic ◽  
Mechanical Characteristics ◽  
Physical Structure ◽  
Complex Interaction ◽  
Machine Design ◽  
Digital Representation ◽  
Effective Models

AbstractThe elasto-mechanical characteristic of forming machines is crucial for a variety of forming processes. Numerical simulations are to be performed to understand the complex interaction between process, forming tool, and machine. The machine’s elastic fingerprint depends on its design, accuracy of the components, and mounting conditions. Models only based on data of the machine design are limited. Therefore, effective FE models are to be developed to transfer the physical structure into a digital representation. The paper presents different methods of creating effective models for the characteristics of forming machines determined by measurements. Examples and potential of using these models are presented.

Formation Characteristics of Formaldehyde and the Formaldehyde Precursors Which Release Formaldehyde through Thermal Decomposition in Water

1992 ◽  
Vol 25 (11) ◽  
pp. 371-378
Author(s):  
H. Yamada ◽  
S. Matsui
Keyword(s):  
Thermal Decomposition ◽  
Surface Water ◽  
Oxidation Process ◽  
Algal Growth ◽  
The Other ◽  
Culture Solution ◽  
Growth Cycles ◽  
Blue Green Algae ◽  
Oxidation Processes ◽  
Chemical Structures

The amount of formaldehyde (FA) in surface water and the amount of FA formed by boiling the water were analyzed. Formation characteristics of FA and of the formaldehyde precursors which release FA through thermal decomposition (FA-PTDs), in surface water and the culture solution of blue-green algae (Phormidiumtenue and Anabaenamacrospora), were investigated. The characteristics by ozonation were also investigated. FA is released by the artificial oxidation process such as ozonation and by thermal decomposition. It is also released from a natural oxidation process in lake water during algal growth cycles. However, FA and FA-PTDs are biodegradable and do not last long in water. At present, it is not clear what kind of chemical structures FA-PTDs have. In general, FA-PTDs are different from the other formaldehyde precursors which form FA through artificial oxidation processes such as chlorination and ozonation. However, it is indicated that there is a certain type of FA-PTDs which can also be a formaldehyde precursor which easily forms FA by oxidation.

Thermal and Mechanical Analysis of High Power LEDs With Ceramic Packages

2007 ◽  
Author(s):  
Jianzheng Hu ◽  
Lianqiao Yang ◽  
Moo Whan Shin
Keyword(s):  
High Power ◽  
Mechanical Characteristics ◽  
Mechanical Analysis ◽  
Thermomechanical Stress ◽  
Light Emitting ◽  
Plastic Packages ◽  
Thermal Measurements ◽  
Interface Layers ◽  
Transient Thermal ◽  
Plastic Mould

In this paper we present the thermal and mechanical analysis of high power light emitting diodes with ceramic packages. Transient thermal measurements and thermomechanical simulations were performed to study the thermal and mechanical characteristics of ceramic packages. Thermal resistances from the junction to the ambient were decreased from 76.1 °C/W to 45.3 °C/W by replacing the plastic mould to the ceramic mould for LED packages. Higher level of thermomechanical stress in the chip was found for LEDs with ceramic packages despite of less mismatching coefficients of thermal expansion comparing with plastic packages. The results suggest that the thermal performance of LEDs can be improved by using ceramic packages, but the mounting process of the high power LEDs with ceramic packages is critically important and should be in charge of delaminating interface layers in the packages.

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