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1.
Sci Rep ; 14(1): 19226, 2024 Aug 20.
Article in English | MEDLINE | ID: mdl-39160323

ABSTRACT

Consensus holds that pottery technology came to Central Europe from the Northern Balkans with independent pottery traditions existing concurrently in Eastern Europe. An unusual grass-tempered pottery dating back to around 5800 cal BC found in lake sediments at Santovka, Slovakia, predated the earliest known Neolithic pottery in the region (~ 5500 cal BC), suggesting unexplored narratives of pottery introduction. Analyses of the pottery's technology, origin, and grass temper shedding light on ceramic traditions' spread can unveil mobility patterns and community lifestyles. Our findings indicate a non-local provenance, low temperature firing, Festugc sp. grass temper and unique rectangular or cylindrical vessel shapes which align with Eastern European hunter-gatherer practices. Moreover, the pottery style and technology have no analogies in the contemporary Danubian pottery traditions and have more similarities to those of the Eastern traditions. The pottery's raw materials likely originated from distant areas, indicating extensive territorial access for its creators. Our findings imply late Mesolithic hunter-gatherers as the probable artisans and with implications for the site's significance in the late Mesolithic landscape.

2.
J Chromatogr A ; 1731: 465154, 2024 Aug 30.
Article in English | MEDLINE | ID: mdl-39053251

ABSTRACT

The identification of archaeological biomarkers is one of the main objectives of analytical chemistry in the archaeological field. However, no information is currently available on biomarkers able to unambiguously indicate the presence of olive oil, a cornerstone of Mediterranean ancient societies lifestyle, in an organic residue. This study aims to bridge this gap by a thorough characterization of the degradation products of extra-virgin olive oils (EVOOs) resulting from in-lab thermal oxidative treatments, with the primary goal of revealing potential archaeological biomarkers for olive oil. Thirty-three EVOOs sourced from eleven different monocultivars across five Italian regions (Sicily, Apulia, Lazio, Tuscany, and Liguria) and Spain, were analyzed before and after thermal oxidation. In addition, an identical thermal treatment was employed on pure triglyceride standards (triolein, trilinolein, and tristearin), due to the high concentration of their fatty acids in EVOO discerning their degradation patterns. A combination of analytical strategies was employed, including HPLC-MS and HPLC-ELSD for the complete evaluation of the intact lipids (triglycerides, diglycerides, and their oxidative species) in olive oils before and after oxidation, and HS-SPME-GC-MS and GC-FID for the characterization of secondary oxidation products formed by the thermal treatment. In addition, to elucidate the fatty acid distribution in the oxidized EVOOs by GC-MS and GC-FID techniques a derivatization step was performed to convert lipid compounds into trimethylsilyl (TMS) derivatives. A chemometric approach was used to thoroughly interpret the data obtained from intact and oxidized samples. This comprehensive investigation sheds light on the chemical transformations of EVOOs under thermal oxidative conditions and indicates mono-carboxylic acids such as pentanoic, hexanoic, heptanoic, octanoic, nonanoic, and decanoic acids as potential archaeological biomarkers for the presence of lipid substances coming from olive oil in archaeological organic residues. Finally, lipid contents from twenty-four real archaeological samples, grouped in amphorae (10), unguentaria (5), and lamps (9), excavated from the Roman domus of Villa San Pancrazio in Taormina (Italy), were determined. The analytical results obtained from amphorae samples revealed the presence of the selected olive oil-specific archaeological biomarkers, an information extremely interesting considering that this type of amphorae have so far been solely associated with the storage of wine.


Subject(s)
Archaeology , Olive Oil , Oxidation-Reduction , Olive Oil/chemistry , Italy , Archaeology/methods , Chromatography, High Pressure Liquid/methods , Gas Chromatography-Mass Spectrometry/methods , Lipids/chemistry , Lipids/analysis , Fatty Acids/analysis , Fatty Acids/chemistry , Mass Spectrometry/methods
3.
Ethnoarchaeology ; 16(1): 126-162, 2024.
Article in English | MEDLINE | ID: mdl-38895163

ABSTRACT

The identification of beer production in past societies remains a challenge as very few studies have discussed its material evidence. Our investigation in Senegal aimed at filling this gap. We documented 14 beer houses and several beer cooking areas in five Bedik villages and excavated a beer house and associated cooking area in a recently abandoned village. We recorded the architectural attributes of the beer-making structures (location, shape, size, materials, techniques, internal layouts). We also analyzed associated pottery combining typometry and use-wear. Such an integrated study revealed that the pottery types (large vessels, small bottles) and use-alteration (inner non-abrasive attrition), are the most distinctive features for identifying beer production, besides the beer houses' internal layouts (wedge holes of large pottery, altar) and the beer cooking areas' location outside the compound. Exploration of the same criteria in other cultural contexts in Africa lends support to the broader significance of these findings.

4.
Archaeol Anthropol Sci ; 16(7): 97, 2024.
Article in English | MEDLINE | ID: mdl-38854990

ABSTRACT

Rice and millet arrived in Western Japan from Korea around 3,000 years ago and spread eastwards across the archipelago in the next 700 years. However, the extent to which agriculture transformed traditional Jomon hunter-gatherer-fisher communities is debated. Central Japan is a key area of study as remodelling of radiocarbon dates shows a slowdown in the dispersal rate of rice agriculture in this area. Here, we examine and compare the use of pottery by Final Jomon and Early to Middle Yayoi communities in the Tokai and the Central Highland regions of central Japan, using lipid residue analysis. Although the identification of specific biomarkers for rice remains elusive, an increase in the ratio of E/H C18 APAAs with the arrival of rice and millet indicates a potential change in plant processing and consumption. We were also able to identify biomarkers for broomcorn millet (miliacin) in both Final Jomon and Yayoi pottery. However, evidence for millet consumption is sparse and in all cases was likely mixed with wild hunted and foraged foods. We conclude therefore that, despite the introduction of rice and millet agriculture in central Japan, pre-existing diets and culinary habits of Jomon hunter-gatherers remain important. Supplementary Information: The online version contains supplementary material available at 10.1007/s12520-024-01992-9.

5.
Wei Sheng Yan Jiu ; 53(2): 294-299, 2024 Mar.
Article in Chinese | MEDLINE | ID: mdl-38604967

ABSTRACT

OBJECTIVE: To establish an analytical method for determining the migration of 24 elements in Yixing clay pottery in 4% acetic acid simulated solution by inductively coupled plasma mass spectrometry. METHODS: Four types of Yixing clay pottery, including Yixing clay teapot, Yixing clay kettle, Yixing clay pot, and Yixing clay electric stew pot, were immersed in 4% acetic acid as a food simulant for testing. The migration amount of 24 elements in the migration solution was determined using inductively coupled plasma mass spectrometry. RESULTS: Lithium, magnesium, aluminum, iron, and barium elements with a mass concentration of 1000 µg/L; Lead, cadmium, total arsenic, chromium, nickel, copper, vanadium, manganese, antimony, tin, zinc, cobalt, molybdenum, silver, beryllium, thallium, titanium, and strontium elements within 100 µg/L there was a linear relationship within, the r value was between 0.998 739 and 0.999 989. Total mercury at 5.0 µg/L, there was a linear relationship within, the r value of 0.995 056. The detection limit of the elements measured by this method was between 0.5 and 45.0 µg/L, the recovery rate was 80.6%-108.9%, and the relative standard deviation was 1.0%-4.8%(n=6). A total of 32 samples of four types of Yixing clay pottery sold on the market, including teapots, boiling kettles, casseroles, and electric stewing pots, were tested. It was found that the migration of 16 elements, including beryllium, titanium, chromium, nickel, cobalt, zinc, silver, cadmium, antimony, total mercury, thallium, tin, copper, total arsenic, molybdenum, and lead, were lower than the quantitative limit. The element with the highest migration volume teapot was aluminum, magnesium, and barium; The kettle was aluminum and magnesium; Casserole was aluminum, magnesium, and lithium; The electric stew pot was aluminum. CONCLUSION: This method is easy to operate and has high accuracy, providing an effective and feasible detection method for the determination and evaluation of element migration in Yixing clay pottery.


Subject(s)
Arsenic , Mercury , Trace Elements , Acetates , Aluminum/analysis , Antimony/analysis , Arsenic/analysis , Barium/analysis , Beryllium/analysis , Cadmium/analysis , Chromium , Clay , Cobalt/analysis , Copper , Lithium/analysis , Magnesium , Mass Spectrometry , Mercury/analysis , Molybdenum/analysis , Nickel , Silver/analysis , Thallium/analysis , Tin/analysis , Titanium/analysis , Trace Elements/analysis , Zinc , China
6.
PNAS Nexus ; 3(2): pgae055, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38415220

ABSTRACT

Pottery is a quintessential indicator of human cultural dynamics. Cultural alignment of behavioral repertoires and artifacts has been considered to rest upon two distinct dynamics: selective transmission of information and culture-specific biased transformation. In a cross-cultural field experiment, we tested whether community-specific morphological features of ceramic vessels would arise when the same unfamiliar shapes were reproduced by professional potters from three different communities who threw vessels using wheels. We analyzed the details of the underlying morphogenesis development of vessels in wheel throwing. When expert potters from three different communities of practice were instructed to faithfully reproduce common unfamiliar model shapes that were not parts of the daily repertoires, the morphometric variation in the final shape was not random; rather, different potters produced vessels with more morphometric variation among than within communities, indicating the presence of community-specific deviations of morphological features of vessels. Furthermore, this was found both in the final shape and in the underlying process of morphogenesis; there was more variation in the morphogenetic path among than within communities. These results suggest that the morphological features of ceramic vessels produced by potters reliably and nonrandomly diverge among different communities. The present study provides empirical evidence that collective alignment of morphological features of ceramic vessels can arise from the community-specific habits of fashioning clay.

7.
Micromachines (Basel) ; 15(1)2024 Jan 19.
Article in English | MEDLINE | ID: mdl-38276849

ABSTRACT

It is known that ceramic-polymer composite materials can be used to manufacture spherical bodies in the category of balls. Since balls are frequently subjected to compression loads, the paper presents some research results on the compression behavior of balls made of ceramic composite materials with a polymer matrix. The mathematical model of the pressure variation inside the balls highlights the existence of maximum values in the areas of contact with other parts. Experimental research was carried out on balls with a diameter of 20 mm, manufactured by 3D printing from four ceramic-polymer composite materials with a polymer matrix: pottery clay, terracotta, concrete, and granite. The same ceramic-polymer composite material was used, but different dyes were added to it. A gravimetric analysis revealed similar behavior of the four materials upon controlled heating. Through the mathematical processing of the experimental results obtained by compression tests, empirical mathematical models of the power-type function type were determined. These models highlight the influence exerted by different factors on the force at which the initiation of cracks in the ball materials occurs. The decisive influence of the infill factor on the size of the force at which the cracking of the balls begins was found.

8.
J Agric Food Chem ; 72(3): 1695-1707, 2024 Jan 24.
Article in English | MEDLINE | ID: mdl-38194670

ABSTRACT

Long-term storage Baijiu has an appealing sensory property, yet the chemical makeup is rarely reported. This study investigated a 30-year-old Jiangxiangxing (JXX) Baijiu and recognized and measured 69 aroma compounds. 3-Methyl-2,4-nonanedione (2.76 µg/L), 2,5-dimethyl-4-hydroxy-3(2H)-furanone (HDMF, 46.2 µg/L), 2-ethyl-4-hydroxy-5-methyl-3(2H)-furanone (HEMF, 61.7 µg/L), and piperitone (3.66 µg/L) were detected for the first time in Baijiu. Compared with 3-year-old JXX Baijiu, 24 compounds were significantly higher in the 30-year-old, mainly including furans, pyrazines, and aromatics. Notably, 4,5-dimethyl-3-hydroxy-2(5H)-furanone (sotolon), HDMF, HEMF, vanillin, acetovanillone, and alkyl pyrazines in 30-year-old JXX Baijiu were 2-7 times higher than those of a 3-year-old, and they increased steadily during aging for 3, 15, and 30 years, assumed to be associated with the aging aroma. Following 24 months of storing JXX Baijiu under different conditions, the pottery significantly promoted the synthesis of sotolon, HDMF, HEMF, and alkyl pyrazines. These findings suggest that pottery is a potential catalyst for enhancing aged Baijiu.


Subject(s)
Odorants , Organic Chemicals , Odorants/analysis , Pyrazines , Furans/chemistry
9.
Molecules ; 28(23)2023 Nov 24.
Article in English | MEDLINE | ID: mdl-38067469

ABSTRACT

Some painted pottery figurines were excavated from the tomb of Qibi Ming of the Tang Dynasty. A series of analytical techniques were employed to understand the craftsmanship of these painted pottery figurines. The pigment, cross-section, adhesive, and firing temperature were analyzed using microscopy (OM), energy X-ray fluorescence spectrometry (EDX), micro-Raman spectroscopy, pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS), and a dilatometer (DIL). The results demonstrated that the surface of the pigment layers had degraded to different degrees. The pigment particles were litharge, gypsum, malachite, cinnabar, hematite, minium, white lead, and carbon black. The cross-sectional images show that the painted layer of figurines 10-0966 and 10-0678 included a pigment layer and a preparation layer. The preparation layer of both pigments was lead white. Animal glue was used as an adhesive. The firing temperature of the pottery figurines was likely 1080 °C. This study can provide more accurate information with regard to the composition of the raw materials utilized in the making of these artifacts and support the selection of appropriate substances for the purposes of conservation and restoration of the painted pottery figurines.

10.
Tuberculosis (Edinb) ; 143S: 102388, 2023 12.
Article in English | MEDLINE | ID: mdl-38012923

ABSTRACT

Recent studies combining macroscopical observations and microCT analysis strongly suggested the diagnosis of tuberculosis for a child from the site of Khirokitia (Cyprus, 7th - early 6th millennium cal. BC), whose age at death is between 5 and 7 years. Many single primary burials were discovered at the site where the dead (MNI = 243) are buried in the same way, whatever their age. Nevertheless, the burial of this child presents a unique feature on the site (a male Ovis trophy marking the limit of the burial pit), probably indicating specific attention for this young deceased. This case is the oldest known in the Mediterranean islands and presents a particular interest from a paleoepidemiological point of view. Indeed, considering, on the one hand, the settlement pattern of the island of Cyprus by migrants from the Near East, and on the other hand, the presence of human tuberculosis in the Near East as early as about 10,500 years BP, it is very likely that the prehistoric migrants brought the disease from mainland to Cyprus.


Subject(s)
Mycobacterium tuberculosis , Tuberculosis , Child , Humans , Male , Animals , Sheep , Child, Preschool , Cyprus/epidemiology , Mediterranean Islands/epidemiology , Tuberculosis/diagnosis , Tuberculosis/epidemiology , Burial
11.
Proc Natl Acad Sci U S A ; 120(43): e2310138120, 2023 10 24.
Article in English | MEDLINE | ID: mdl-37844237

ABSTRACT

To investigate changes in culinary practices associated with the arrival of farming, we analysed the organic residues of over 1,000 pottery vessels from hunter-gatherer-fisher and early agricultural sites across Northern Europe from the Lower Rhine Basin to the Northeastern Baltic. Here, pottery was widely used by hunter-gatherer-fishers prior to the introduction of domesticated animals and plants. Overall, there was surprising continuity in the way that hunter-gatherer-fishers and farmers used pottery. Both aquatic products and wild plants remained prevalent, a pattern repeated consistently across the study area. We argue that the rapid adaptation of farming communities to exploit coastal and lagoonal resources facilitated their northerly expansion, and in some cases, hunting, gathering, and fishing became the most dominant subsistence strategy. Nevertheless, dairy products frequently appear in pottery associated with the earliest farming groups often mixed with wild plants and fish. Interestingly, we also find compelling evidence of dairy products in hunter-gatherer-fisher Ertebølle pottery, which predates the arrival of domesticated animals. We propose that Ertebølle hunter-gatherer-fishers frequently acquired dairy products through exchange with adjacent farming communities prior to the transition. The continuity observed in pottery use across the transition to farming contrasts with the analysis of human remains which shows substantial demographic change through ancient DNA and, in some cases, a reduction in marine consumption through stable isotope analysis. We postulate that farmers acquired the knowledge and skills they needed to succeed from local hunter-gatherer-fishers but without substantial admixture.


Subject(s)
Agriculture , Archaeology , Animals , Humans , Europe , Farms , Farmers
12.
J Archaeol Method Theory ; : 1-36, 2023 May 29.
Article in English | MEDLINE | ID: mdl-37359278

ABSTRACT

The potential applications of microCT scanning in the field of archaeobotany are only just beginning to be explored. The imaging technique can extract new archaeobotanical information from existing archaeobotanical collections as well as create new archaeobotanical assemblages within ancient ceramics and other artefact types. The technique could aid in answering archaeobotanical questions about the early histories of some of the world's most important food crops from geographical regions with amongst the poorest rates of archaeobotanical preservation and where ancient plant exploitation remains poorly understood. This paper reviews current uses of microCT imaging in the investigation of archaeobotanical questions, as well as in cognate fields of geosciences, geoarchaeology, botany and palaeobotany. The technique has to date been used in a small number of novel methodological studies to extract internal anatomical morphologies and three-dimensional quantitative data from a range of food crops, which includes sexually-propagated cereals and legumes, and asexually-propagated underground storage organs (USOs). The large three-dimensional, digital datasets produced by microCT scanning have been shown to aid in taxonomic identification of archaeobotanical specimens, as well as robustly assess domestication status. In the future, as scanning technology, computer processing power and data storage capacities continue to improve, the possible applications of microCT scanning to archaeobotanical studies will only increase with the development of machine and deep learning networks enabling the automation of analyses of large archaeobotanical assemblages.

13.
Children (Basel) ; 10(5)2023 Apr 27.
Article in English | MEDLINE | ID: mdl-37238334

ABSTRACT

Optimizing fine motor coordination and cognitive abilities in middle childhood through new intervention programs remains one of the most essential orientations in motor development and skills proficiency. The present study aims to identify the effect of a structure-based program intervention, combining motor accuracy exercises with visual art activities (ceramics, pottery, and creations using raw materials), on fine motor coordination, selective attention, and reaction time in middle childhood. Sixty, right-handed typically developed male schoolchildren (age = 8.29 ± 0.74 years; body height = 130.25 ± 0.05 cm and body mass = 29.83 ± 4.68 kg; mean ± SD) volunteered to participate in the study. They were randomly assigned to a combined group intervention (MG) receiving a mixed program integrating visual art activities and motor accuracy exercises; an accuracy group intervention (AG) receiving oriented motor accuracy exercises; and a control group (CG). Selective attention, reaction time, and fine motor coordination skills (accuracy: darts throw; manual dexterity: grooved pegboard test) were measured. Repeated measure ANOVA, one-way ANOVA, and Kruskal-Wallis ANOVA were performed for analysis. The results showed higher changes in MG compared to AG in manual dexterity (p < 0.001), in motor accuracy (p < 0.001), and in reaction time (p < 0.01), but not in selective attention (p = 0.379). In addition, higher changes were recorded in AG compared to CG in motor accuracy (p < 0.05), reaction time (p < 0.05), and in selective attention (p < 0.01), but not in manual dexterity (p = 0.082). The structured combined program best assists accuracy, manual dexterity, reaction time, and selective attention. Therefore, instructors in sports academies and teachers at schools are advised to use the combined program in the training sessions and in the non-curricular activities, respectively, to improve fine motor coordination, selective attention, and reaction time in middle childhood.

14.
Archaeol Anthropol Sci ; 15(5): 70, 2023.
Article in English | MEDLINE | ID: mdl-37151408

ABSTRACT

Ceramic objects account for over 90% of the cultural material recovered from archaeological sites in the Caribbean. However, little research has been conducted on molecular evidence for past food production from these same vessels. Forty ceramic sherds from Isla de Mona have been analysed by GC-MS and GC-C-IRMS in order to address questions surrounding foodways in the Greater Antilles prior to and post European arrival. We evaluate evidence for dietary changes to illuminate aspects of cultural exchange between Indigenous populations and the first generations of Spanish colonists. Here, we show that plant residues are found in a variety of pottery forms, with some evidence for non-ruminant and ruminant fats. The dearth of marine biomarkers is curious given the volume of fish bones found in archaeological contexts on Isla de Mona and may offer evidence for spit-roasting, pit-roasting, or the use of a 'barbacoa' to cook fish on the island. The ubiquity of plant residues in a variety of pottery forms may relate to the large-scale cultivation and export of cassava (Manihot esculenta) from the island. A Spanish olive jar revealed evidence of wine residues, which may constitute the earliest detection of wine residues in pottery found in the Americas. Supplementary information: The online version contains supplementary material available at 10.1007/s12520-023-01771-y.

15.
Archaeol Anthropol Sci ; 15(5): 62, 2023.
Article in English | MEDLINE | ID: mdl-37096178

ABSTRACT

Through the analyses of recovered pottery, this study explores the social dimension of an ancestor cult developed at the Petit-Chasseur megalithic necropolis (Upper Rhône Valley, Switzerland) during the Early Bronze Age (2200-1600 BC). The jar votive offerings and domestic pottery from settlement sites were characterized using a range of spectroscopic and microscopic techniques. Acquired archaeometric data allowed identification of six ceramic fabrics and two types of clay substrate-illite- and muscovite-based-which were used in pottery production. The present article discusses the pottery composition in the light of natural resources available in the region, thus shedding light on raw material choices and paste preparation recipes. The Early Bronze Age people that lived in the Upper Rhône Valley seem to have shared a common ceramic tradition, partly inherited from the previous Bell Beaker populations. The compositional correspondence between the jar offerings and domestic pottery revealed that the majority of the known Early Bronze Age groups partook in cultic activities at the Petit-Chasseur megalithic necropolis. Supplementary Information: The online version contains supplementary material available at 10.1007/s12520-023-01737-0.

16.
Neurotoxicology ; 95: 164-172, 2023 03.
Article in English | MEDLINE | ID: mdl-36736786

ABSTRACT

OBJECTIVE: Pottery-related activities are characterized by the emission of multiple air pollutants in the form of particulate matter, gases, and organic compounds. These pollutants are associated with adverse neuropsychological effects. This study aimed at investigating the effect of occupational exposure to air pollutants on the neuropsychiatric health. METHODS: A total of 180 male workers (90 exposed workers and 90 administrative employees) were recruited from pottery-making activities in the Fawakher region located in old Cairo (Misr Al-Kadema); the administrative employees were the control group. Personal, medical, and family histories, general and neurological clinical examination, and neuropsychological assessments were recorded. Serum levels of 4-hydroxy-2-nonenal levels (4HNE) were measured by ELISA. Environmental measurement of workplace air pollutants was performed. RESULTS: Environmental monitoring of the workplace revealed that workers are exposed to high levels of SO2 and NO2 as these exceeded the national standard levels. Compared to the control group, the exposed workers' group demonstrated a significant decrease in digit forwards score, digit backward score, and symbol digit score and a significant higher Hamilton Depression Scale score, and Benton Visual Retention score. The level of 4HNE was significantly increased among the exposed workers' group compared to that of the control group. CONCLUSION: Occupational exposure to air pollutants is associated with impairment in neuropsychological functions, with a corresponding increase in the serum level of 4HNE, which is a biomarker for oxidative stress among Egyptian pottery workers.


Subject(s)
Air Pollutants, Occupational , Air Pollutants , Occupational Exposure , Humans , Male , Air Pollutants/adverse effects , Occupational Exposure/adverse effects , Occupational Exposure/analysis , Particulate Matter , Environmental Monitoring , Biomarkers/analysis , Air Pollutants, Occupational/adverse effects , Air Pollutants, Occupational/analysis
17.
Archaeol Anthropol Sci ; 15(3): 25, 2023.
Article in English | MEDLINE | ID: mdl-36789354

ABSTRACT

This paper, jointly written by participants of a workshop held in 2021, argues for an increased recognition and application of neutron activation analysis (NAA) in the archaeology of the ancient Mediterranean. Discussing the methodological strengths and challenges, it highlights the great potential NAA has for collecting proxy data from ceramics in order to develop progressive concepts of archaeological research within and beyond the Mediterranean Bronze and Iron Age, pointing out opportunities to revisit long-held assumptions of scholarship and to refine visual/macroscopic provenance determinations of pottery. To take full advantage of NAA's strengths toward a better understanding of the socioeconomic background of ceramics production, distribution, and consumption, the paper emphasises the need for both interdisciplinary collaboration and basic data publication requirements. Supplementary Information: The online version contains supplementary material available at 10.1007/s12520-023-01728-1.

18.
Article in English | MEDLINE | ID: mdl-36834045

ABSTRACT

Ceramics play an important role in human daily life and production practice. Pottery sculpture technique is the core of ceramic making. However, the production process of traditional ceramics is accompanied by high pollution, which has a great impact on human health and the ecological environment. Rapid development of industrialization has exacerbated this consequence. As the "Pottery Capital of Southern China", Foshan has been involved in environmental crises while relying on the ceramic industry to develop. Since the 21st century, Foshan has gradually successfully driven to upgrade the city from industrial to culture-led by carrying out positive innovations in Shiwan pottery sculpture technique. Therefore, based on the theoretical perspective of cultural ecology, this paper selects Shiwan pottery sculpture technique as the object, uses Python (Octopus Collector) to obtain data, and applies grounded theory to generate the ecological evolution model. This study discussed how the Shiwan pottery sculpture technique promotes the harmonious coexistence of human beings, industries, and cities in the new cultural ecological environment of the 21st century by exploring and clarifying the interaction and function of different elements in different stages of evolution. Finally, this study not only makes up for the current lack of research on Shiwan's cultural ecology, but also provides meaningful reference for environmental reform in other industrialized cities.


Subject(s)
Ecology , Sculpture , Humans , China , Sculpture/history , Ceramics , Cities
19.
Foods ; 13(1)2023 Dec 29.
Article in English | MEDLINE | ID: mdl-38201148

ABSTRACT

Sake (Japanese rice wine) was fermented in pottery for more than a millennium before wooden barrels were adopted to obtain a greater brewing capacity. Although a recently conducted analysis of sake brewed in pottery indicated that sake brewed in unglazed pottery contains more ethanol than that brewed in glazed pottery, little is known about the characteristics of sake brewed in pottery. In this study, we used two types of ceramic containers of identical size, one glazed and one unglazed, for small-scale sake brewing to evaluate the effects of glazing on fermentation properties. The following parameters were measured continuously in the sake samples over 3 weeks of fermentation: temperature, weight, ethanol concentration, and glucose concentration in sake mash. Taste-sensory values, minerals, and volatile components were also quantified in the final fermented sake mash. The results show that, in the unglazed containers, the temperature of the sake mash was lower and the weight loss was higher compared to the sake mash in the glazed containers. The quantity of ethanol and the levels of Na+, Fe3+, and Al3+ tended to be higher in the sake brewed in the unglazed pottery. A taste-sensory analysis revealed that umami and saltiness were also higher in the samples brewed in the unglazed pottery. These results suggest that glazing affects multiple fermentation parameters and the flavor of sake brewed in pottery. They may also suggest that the materials of the containers used in sake brewing generally affect the fermentation properties.

20.
J Proteome Res ; 21(11): 2619-2634, 2022 11 04.
Article in English | MEDLINE | ID: mdl-36268809

ABSTRACT

Proteomic analysis of absorbed residues is increasingly used to identify the foodstuffs processed in ancient ceramic vessels, but detailed methodological investigations in this field remain rare. Here, we present three interlinked methodological developments with important consequences in paleoproteomics: the comparative absorption and identification of various food proteins, the application of a deep eutectic solvent (DES) for extracting ceramic-bound proteins, and the role of database choice in taxonomic identification. Our experiments with modern and ethnoarcheological ceramics show that DES is generally more effective at extracting ceramic-bound proteins than guanidine hydrochloride (GuHCl), and cereal proteins are absorbed and subsequently extracted and identifiedat least as readily as meat proteins. We also highlight some of the challenges in cross-species proteomics, whereby species that are less well-represented in databases can be attributed an incorrect species-level taxonomic assignment due to interspecies similarities in protein sequence. This is particularly problematic in potentially mixed samples such as cooking-generated organic residues deposited in pottery. Our work demonstrates possible proteomic separation of fishes and birds, the latter of which have so far eluded detection through lipidomic analyses of organic residue deposits in pottery, which has important implications for tracking the exploitation of avian species in various ancient communities around the globe.


Subject(s)
Deep Eutectic Solvents , Proteomics , Archaeology , Proteins , Ceramics/chemistry , Solvents
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