Materials and Methods Potato peels Fresh potato or eggplant tubers were obtained from local market of Assuit in August 2011. The tubers were washed by water and peeled using kitchen vegetable peeler. The peels were dried in a hot air oven (VEBMLW Medizinische, Gerete, Berlin, Germany) at 200°C for 1 h. The dried peels were ground into a fine powder in laboratory mill (120 Perten, USA). The ground powder that passed through an 80 mesh sieve was packed into polyethylene dark bags and was stored at
From the above graph (Fig. 1), the change in tissue mass percentage for the damaged tissue of the potato tuber increases as the sucrose solution concentration increases, there were more positives at concentrations 0.15 mol/L (7.3%), 0.20 Mol/L (6.8%), 0.25 Mol/L (3.02%) ,0.3 Mol/L (2.65%), 0.35 Mol/L (2.84%) and 0.50 Mol/L (3.69%) respectively. For the young tissue, the % change in tissue mass decreases as sucrose concentration increased. At 0.25 Mol/L (-0.6%), 0.3 Mol/L (-1.15%), 0.35 Mol/L (4
Criterion B: Osmotic Potential in a Potato Introduction Context: The purpose of my scientific investigation is to investigate “the effects an epidermis has on the osmotic potential of a potato”. This is because, I have observed that a lot of food chains around the world choose to take the epidermis off the potato while soaking it in water. Whereas, other food chains choose to keep the epidermis on the potato while soaking it in water. The aim of the test is to determine which one of these practices
temperature at 25°C is used. The selective medium that uses in this experiment includes the acidified potato dextrose agar (PDA), Dichloran Rose Bengal Chloramphenicol (DRBC) agar, and yeast and mold agar (YMA). Acidification of the PDA agar by using tartaric acid, decrease the pH values to 3.5 that inhibit most of the growth food spoilage and food poisoning bacteria. PDA agar contained rich potato infusion that promotes the growth of yeast and molds. DRBC agar is a selective media that commonly used
are eating Genetically Modified Food every day. While the food and chemical claim that Genetically Modified Food is safe, a considered cannot evidence shows otherwise. In Seeds of Deception, Jeffrey Smith, a former executive with leading independent labs testing for Genetically Modified presence in foods, documents these serious health
INTRODUCTION Vaccines are used widely in the world. With the discovery of various vaccines mortality rate caused by various infectious organisms have reduced. Their use has been considered one of the safe and effective measures to control various infectious diseases. Plants offer enormous potential as production platforms for vaccines and therapeutic proteins. Vaccines derived from plants present an alternative to conventional vaccines by facilitating safe and effective oral delivery through intake
Media composition: Fermentation broth was prepared using two different substrates. The composition of the culture broth is given below: Fermentation broth using waste bread as substrate: Waste bread 1.5% (NH4)2SO4 0.2% MgSO4.7H2O 0.04% KCl 0.1% KH2PO4 0.2% Yeast Extract 0.1% pH 6.5 Fermentation broth using waste of Citrus sinsencis as substrate: Waste fruit 1.5% (NH4)2SO4 0.2% MgSO4.7H2O 0.04% KCl 0.1% KH2PO4 0.2% Yeast Extract 0.1% pH 6.5 Media preparation: Using
Title of PhD research proposal: Morphological and Molecular Characterization, Micropropagation and nutritional assessment of cocoyam (Xanthosoma sagittifolium (L.) Schott) germplasms from Ethiopia By: Eyasu Wada Wachamo Email: eyasuwada@yahoo.com Phone number (Mobile): 251 912 841 769 Skype name: eyasu.wada1 Applied Genetics PhD student, Department of Microbial, Cellular and Moleulr Biology, Addis Ababa University 1. Introduction Cocoyam (Xanthosoma sagittifolium L. Schott) is herbaceous, perennial
BIOFUELS Two problems roused the world’s concern in recent years. One is energy crisis caused by the squandering of petroleum fuel. Second problem is environmental problems such as greenhouse effect, global warming, etc. To deal with such problems, renewable sources, utilization technology and bioenergy production technology have been developed. Bioethanol as one of the biofuel can be blended in different proportions in automobiles with gasoline. Biobutanol is also a new biofuel (Liu, Wang, & Zhang