scholarly journals Roman Wine in Barbaricum. Preliminary Studies on Ancient Wine Recreation

Heritage ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 331-338
Author(s):  
Iwona Feier ◽  
Aleksandra Migała ◽  
Marta Pietruszka ◽  
Mateusz Jackowski
Keyword(s):  
Gas Chromatography ◽  
Fermentation Process ◽  
Wine Making ◽  
Roman World ◽  
Pliny The Elder ◽  
Political Relations ◽  
Roman Limes ◽  
Ancient Texts

Ancient Roman wine is found outside of the borders of the Roman world as a result of the Roman influence, trade and political relations. In our project, we decided to extensively research and recreate the ancient method of wine making in order to understand ancient viticulture and viniculture as it could have been if implemented outside of the borders. The objective was to recreate roman wine using ancient methods based on ancient texts (such as Columella, Pliny the Elder, Cicero, Cato the Elder, Galenus and Mago). The wine was made using modern grapes grown on lands considered by the Romans as barbaric (i.e., outside the Roman Limes), in modern Poland. The aim of the project—except for the wine making itself—was to measure the level of alcohol created through fermentation process. Ethanol levels in samples were obtained using gas chromatography (GC).

Renewable Energy from Agricultural Waste

2018 ◽  
Vol 69 (6) ◽  
pp. 1363-1366 ◽  
Author(s):  
Stefania Daniela Bran ◽  
Petre Chipurici ◽  
Mariana Bran ◽  
Alexandru Vlaicu
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Gas Chromatography ◽  
Continuous Flow ◽  
Laboratory Experiments ◽  
Fermentation Process ◽  
Flow Reactor ◽  
Agricultural Waste ◽  
Continuous Flow Reactor ◽  
Natural Support ◽  
Co2 Flow

This paper has aimed at evaluating the concentration of bioethanol obtained using sunflower stem as natural support, molasses as carbon source and Saccharomyces cerevisiae yeast in a continuous flow reactor. The natural support was tested to investigate the immobilization/growth of S. cerevisiae yeast. The concentration of bioethanol produced by fermentation was analyzed by gas chromatography using two methods: aqueous solutions and extraction in organic phase. The CO2 flow obtained during the fermentation process was considered to estimate when the yeast was deactivated. The laboratory experiments have highlighted that the use of plant-based wastes to bioconversion in ethanol could be a non-pollutant and sustainable alternative.

scholarly journals Resemblance and camouflage in Graeco-Roman antiquity

2010 ◽  
Vol 38 (1/4) ◽  
pp. 167-185
Author(s):  
Massimo Leone
Keyword(s):  
Point Of View ◽  
Natural Behaviour ◽  
Pliny The Elder ◽  
General Goal ◽  
Roman Antiquity ◽  
The Way ◽  
Ancient Texts

In the twenty-eighth book of the Naturalis Historia Pliny the Elder claims that, if a chameleon’s left leg is roasted together with a herb bearing the same name, and everything is mixed with ointment, cut in lozenges, and stored in a wooden little box, this will bestow on those who own it a perfect camouflage. The ring of Gyges (Plato, etc.), that of Midas (Pliny), the heliotropium (Pliny), the dracontitis (Philostratus): ancient cultures abound with references to objects, recipes, and techniques able to bestow different kinds of invisibility, meant as a perfect resemblance with the environment. At the same time, these same cultures also teem with references to how to avert the perfect camouflage: for instance, by being endowed with a pupula duplex, a double pupil (Ovid). The paper explores such vast corpus of texts from the point of view of a semiotics of cultures, in order to track the roots of a conception of camouflage that, from these ancient cultures on, develops through intricate paths into the contemporary imaginaires (and practices) of invisibility. The paper’s more general goal is to understand the way in which cultures elaborate conceptions of invisibility meant as the perfect resemblance between humans and their environments, often on the basis of the observation of the same resemblance between other living beings and their habitat. Ancient texts are therefore focused on in order to decipher the passage from camouflage as an adaptive natural behaviour to camouflage as an effective combat strategy.

scholarly journals The Aroma Composition of Baby Ginger Paocai

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Songming Luo ◽  
Qiang Li ◽  
Anjun Chen ◽  
Xingyan Liu ◽  
Biao Pu
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Volatile Compounds ◽  
Solid Phase Microextraction ◽  
Fermentation Process ◽  
Solid Phase ◽  
Relative Content ◽  
Gas Chromatography Mass Spectrometry ◽  
Geranyl Acetate ◽  
Aroma Components

The purpose of this study was to analyze the volatile compounds in baby ginger paocai and the fresh baby ginger and identify the key aroma components that contribute to the flavor of baby ginger paocai. A total of 86 volatile compounds from the two baby ginger samples were quantified; these compounds were extracted by headspace solid-phase microextraction (HS-SPME) and analyzed by gas chromatography–mass spectrometry (GC-MS). The aroma composition of baby ginger paocai was different from that of fresh baby ginger. Baby ginger paocai was characterized by the presence of aroma-active compounds which varied in concentration from 0.03 to 28.14%. Geranyl acetate was the aroma component with the highest relative content in baby ginger paocai. β-myrcene, eucalyptol, trans-β-ocimene, Z-ocimene, linalool, decanal, cis-citral, geraniol, geranyl acetate, curcumene, and β-bisabolene contributed to the overall aroma of the product of baby ginger paocai which had gone through a moderate fermentation process.

scholarly journals Hippocrates, Galen, and the uses of trepanation in the ancient classical world

2007 ◽  
Vol 23 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Symeon Missios
Keyword(s):  
Surgical Procedures ◽  
Ancient Greece ◽  
The State ◽  
Ancient Greek ◽  
Roman World ◽  
Classical World ◽  
The World ◽  
Medical Writers ◽  
Ancient Texts

✓Trepanation (ανατρησιζ) is the process by which a hole is drilled into the skull, exposing the intracranial contents for either medical or mystical purposes. It represents one of the oldest surgical procedures, and its practice was widespread in many ancient cultures and several parts of the world. Trepanation was used in ancient Greece and Rome, as described in several ancient texts. Hippocrates and Galen are two of the most prominent ancient Greek medical writers, and their works have influenced the evolution of medicine and neurosurgery across the centuries. The purpose of this paper is to examine Hippocrates' and Galen's written accounts of the technique and use of trepanation in the ancient Greek and Roman world. Examination of those records reveals the ancient knowledge of neurological anatomy, physiology, and therapeutics, and illustrates the state and evolution of neurosurgery in the classical world.

scholarly journals PEMBUATAN BIOETANOL BERBAHAN BAKU AMPAS TEBU DAN KULIT PISANG DENGAN VARIASI MASSA RAGI

JTAM ROTARY ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 123
Author(s):  
Fahron Anwar ◽  
Rachmat Subagyo
Keyword(s):  
Gas Chromatography ◽  
Fermentation Process ◽  
Ethanol Yield ◽  
Banana Peel ◽  
Distilled Water ◽  
Distillation Process ◽  
Fermentation Time ◽  
Ethanol Content

Penelitian ini bertujuan untuk menentukan kadar bioetanol terbaik dari kombinasi campuran ampas tebu dan pisang dengan variasi massa ragi 4 gram, 6 gram dan 8 gram dengan waktu fermentasi 60 jam, untuk menentukan massa ragi yang optimal dan untuk menentukan kadar etanol sesuai untuk SNI. Penelitian ini dilakukan dengan cara hidrolisis atau pendidihan ampas tebu dan kulit pisang untuk memecah molekul menjadi dua bagian dengan air suling, kemudian proses fermentasi dilakukan menggunakan Saccharomyces Cerevisae (ragi) sesuai variasi yang ditentukan dan proses penyulingan dilakukan menggunakan destilator untuk mendapatkan etanol dari fermentasi kemudian diuji dengan Refractometer Pen untuk mengetahui apakah ada etanol yang terbentuk dari proses distilasi. Sampel terbaik yang dipilih kemudian diuji kandungan etanol menggunakan alat Gas Chromatography. Jadi hasil etanol terbaik yang dapat dikategorikan sebagai pencapaian dalam SNI adalah kombinasi dari 75% ampas tebu - 25% kulit pisang dengan penambahan 8 gram ragi dan etanol yang diproduksi sebesar 96,64%. This study aims to determine the best bioethanol levels from a combination of bagasse and banana peel mixtures with variations in yeast mass of 4 grams, 6 grams and 8 grams with a fermentation time of 60 hours, to determine the optimum yeast mass and to determine ethanol levels according to SNI. This research was carried out by hydrolysis or boiling of bagasse and banana peel to break down molecules into two parts with distilled water, then the fermentation process was carried out using Saccharomyces Cerevisae (yeast) according to the specified variation and the distillation process was carried out using a destilator to get ethanol from fermentation then tested with a Refractometer Pen to find out if there is ethanol formed from the distillation process. The best sample selected then tested the ethanol content using the Gas Chromatography tool. So the best ethanol yield that can be categorized as achievement in SNI is a combination of 75% bagasse - 25% banana peel with the addition of 8 grams of yeast and ethanol produced at 96.64%.

scholarly journals ANALISA VARIASI WAKTU FERMENTASI PEMBUATAN BIOETANOL DENGAN BAHAN KULIT SINGKONG DAN KULIT NANAS

2016 ◽  
Vol 1 (2) ◽  
pp. 113-124
Author(s):  
Rachmat Subagyo ◽  
Wahyu Arifin
Keyword(s):  
Gas Chromatography ◽  
Fermentation Process ◽  
Ethanol Yield ◽  
Distillation Process ◽  
Fermentation Time ◽  
Ethanol Level ◽  
Ethanol Content ◽  
Pineapple Peel ◽  
Cassava Peel

This study studied the best levels of bioethanol from a combination of cassava peel and pineapple peel mixtures with 6 gram yeast mass and 72 hours, 96 hours and 120 hours fermentation time, to determine the optimal fermentation time and find ethanol levels according to SNI. This research was carried out by hydrolysis or cassava peel and pineapple peel using aquades for 30 minute to break the molecule into two parts, then carried out the fermentation process using Saccharomyces Cerevisae (yeast) and the distillation process using a destilator to obtain ethanol for fermentation then tested with a Refractometer to determine whether there is an ethanol level formed from the distillation process. The best sample selected was then tested for ethanol content using the Gas Chromatography tool. The results of this study are known by using the Gas Chromatography tool to determine the ethanol content contained in the distilled sample, the highest ethanol content of each combination. So that the best ethanol yield from a combination of 100% cassava peel - 0% Pineapple Peel with a duration of 120 hours fermentation producing ethanol of 89.81% is still not included in the SNI category.

Peru's colonial wine industry and its European background

Antiquity ◽  
1996 ◽  
Vol 70 (270) ◽  
pp. 785-800 ◽  
Author(s):  
Prudence M. Rice
Keyword(s):  
New World ◽  
Wine Industry ◽  
Wine Making ◽  
Roman World

Among the industrial crafts introduced into the Hispanic New World was the growing of grapes, and the making of wine at a grand scale. The technology and the artefacts of wine-making in Spain were, in their turn, largely those of the Roman world. These continuities, and their changing contexts, are evident in this study of the wine-making bodegas of a Peruvian valley.

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