scholarly journals Photosynthesis, yield and raw material quality of sugarcane injured by multiple pests

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6166
Author(s):  
José A.S. Rossato Jr ◽  
Leonardo L. Madaleno ◽  
Márcia J.R. Mutton ◽  
Leon G. Higley ◽  
Odair A. Fernandes
Keyword(s):  
Field Experiment ◽  
Photosynthesis Rate ◽  
Raw Material ◽  
Sugar Production ◽  
Sucrose Content ◽  
Yield Losses ◽  
Material Quality ◽  
Paulo State ◽  
Sugarcane Borer

Understanding sugarcane (Saccharum spp.) response to multiple pest injury, sugarcane borer (Diatraea saccharalis) and spittlebug (Mahanarva fimbriolata), is essential to make better management decisions. Moreover, the consequences of both pests on the sugarcane raw material quality have not yet been studied. A field experiment was performed in São Paulo State, Brazil, where sugarcane plants were exposed to pests individually or in combination. Plots consisted of a 2-m long row of caged sugarcane plants. Photosynthesis was measured once every 3 months (seasonal measurement). Yield and sugar production were assessed. The measured photosynthesis rate was negatively affected by both borer and spittlebug infestations. Photosynthesis reduction was similar on plants infested by both pests as well as by spittlebug individual infestation. Plants under spittlebug infestation resulted in yield losses and represented 17.6% (individual infestation) and 15.5% (multiple infestations). The sucrose content and the sucrose yield per area were reduced when plants were infested by multiple pests or spittlebug.

scholarly journals INVESTIGATION OF DISINFECTANT’S EFFECTIVENESS AS TO CONTAMINATING MICROFLORA IN SUGAR PRODUCTION

2018 ◽  
Vol 5 ◽  
pp. 15-21
Author(s):  
Nataliia Husiatynska ◽  
Tetiana Nechypor
Keyword(s):  
Microbial Contamination ◽  
Raw Materials ◽  
Raw Material ◽  
Sugar Production ◽  
Microbiological Contamination ◽  
Sugar Beets ◽  
High Effectiveness ◽  
Beet Sugar ◽  
Technological Quality

The article presents the results of the studies of the effectiveness of disinfection means, based on chlorinated guanidines, tetradic ammonium salts, dichlorisocyanuric acid, peracetic acid and hydrogen peroxide as to the contaminating microflora of sugar beets. There was investigated the influence of disinfectants on bacteria Bacillus subtilis, Leuconostoс mesenteroides, mycelia fungi Aspergillus niger, Penicillium chrysogenum and yeast Sacharomyses сerevisiae. It was experimentally established, that the studied means has the high effectiveness as to most microorganisms that cause saccharose losses in the process of its extracting from beet chip and result in worsening a technological quality of semi-products of beet-sugar. There was established the high effectiveness of modern disinfection means as to inhibiting slime-forming bacteria of Leuconostoc generis. There was proved a possibility of their use at different technological stages of beet-sugar production for preventing the development of mucous bacteriosis. It was determined that means consumption depends on a type and extent of microbiological contamination of raw materials, semi-products, technological waters at sugar production. There were established concentrations of the studied means as to inhibiting the development of main contaminants of the microflora of raw materials and semi-products in sugar production. There is offered to use the studied means in industrial beet-sugar production that would favor the decrease of microbial contamination of semi-products and the increase of a sugar output from a raw material unit.

scholarly journals INFLUENCE OF RAW MATERIAL QUALITY ON QUALITY OF ICED AND FROZEN WHITE FISH PRODUCTS

2001 ◽  
Vol 24 (6) ◽  
pp. 527-538 ◽  
Author(s):  
D. GIANNINI ◽  
M.A. PARIN ◽  
L. GADALETA ◽  
G. CARRIZO ◽  
A. ZUGARRAMURDI
Keyword(s):  
Raw Material ◽  
Fish Products ◽  
Material Quality

Beet molasses – desugarization, composition, properties and application possibilities

2013 ◽  
pp. 105-114 ◽  
Author(s):  
Evzen Šárka ◽  
Zdenek Bubnik ◽  
Andrea Hinkova ◽  
Jaroslav Gebler ◽  
Pavel Kadlec
Keyword(s):  
Mathematical Model ◽  
Physicochemical Properties ◽  
Raw Material ◽  
Sugar Production ◽  
Beet Molasses ◽  
Cooling Crystallization ◽  
Detailed Composition ◽  
Mathematical Equations ◽  
Composition Properties

Despite the fall in sugar production in Europe, molasses still remains a valuable raw material in many areas. Installation of modern techniques into sugar technology (e.g. bioethanol fermentation or chromatographic separation) has meant that sugar technologists require different final properties and quality of this by-product compared to traditional sugar technology. This paper describes basic mathematical equations and results from a proof mathematical model of C sugar cooling crystallization. Great attention is paid to the detailed composition and physicochemical properties of molasses, knowledge of which is necessary both for novel and existing molasses applications.

Raw-Material Quality of Fast Grown Eucalyptijs Globulus During the First Year

IAWA Journal ◽  
1990 ◽  
Vol 11 (4) ◽  
pp. 421-427 ◽  
Author(s):  
Helena Pereira ◽  
Clara Araújo
Keyword(s):  
Specific Gravity ◽  
Management Strategy ◽  
Management Strategies ◽  
Fibre Length ◽  
Raw Material ◽  
First Year ◽  
Wood Moisture ◽  
Material Quality ◽  
Old Trees

The raw material quality of Eucalyptus globulus during the first year was assessed in an experimental plantation established under four management strategies (control, fertiliser, irrigation and fertiliser/irrigation). The variation of bark content, moisture content, specific gravity and fibre length along the stem for 6-months and II-months-old trees is presented. Bark content decreases with tree diameter and was lowest for the irrigated and fertilised trees. Wood moisture was negatively correlated with specific gravity. No correlation was found between specific gravity and growth rate and fibre length was generally independent of management strategy.

scholarly journals EXPERIMENTAL RESEARCHES ON THE VEGETAL MATERIAL QUALITY, IN ORDER TO OPTIMIZE OF SOME PROCESSING PROCESSES OF THE MEDICINAL PLANTS

2015 ◽  
Vol 21 (3) ◽  
pp. 79-85
Author(s):  
AUGUSTINA PRUTEANU ◽  
LADISLAU DAVID ◽  
VALENTIN VLADUT ◽  
ADRIANA MUSCALU
Keyword(s):  
Medicinal Plants ◽  
High Performance ◽  
Raw Material ◽  
Manufacturing Processes ◽  
Technical Equipment ◽  
Bioactive Substances ◽  
Material Quality ◽  
Extraction Processes ◽  
Experimental Researches

In the production of medicinal plants, the phytotherapeutic products quality is given by the content and the amount of bioactive substances from the plant. The quality of the phytotherapeutic products is dependent on the quality of the vegetal raw material as well as by the quality of the manufacturing processes. This paper presents the experimental determinations of some physical and dimensional properties of the vegetal material, in order to separate by sorts and of obtaining of some vegetal extracts therefrom. The determinations were performed in order to optimize the separation and extraction processes of medicinal plants. Knowing the characteristics of the vegetal material is particularly important for the achievement of some high-performance technical equipment for processing of medicinal plants.

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