The requirements of the pig for “vitamin A” and “vitamin C.”

1924 ◽  
Vol 14 (1) ◽  
pp. 114-125 ◽  
Author(s):  
John Boyd Orr ◽  
Arthur Crichton

Most of our information on the subject of vitamins has been derived from experiments on small animals fed on synthetic diets. The direct application of the results of such experiments to the feeding of farm animals under practical conditions is not warranted. Animals differ in the degree of their susceptibility to disease caused by lack of vitamins, and laboratory diets, composed of foodstuffs subject to abnormal physical or chemical processes, such as heating under pressure, or prolonged extraction with fat solvents, have no parallel in animal husbandry.

Polar Record ◽  
2002 ◽  
Vol 38 (204) ◽  
pp. 23-38 ◽  
Author(s):  
Conrad E. Heidenreich ◽  
Nancy L. Heidenreich

AbstractA list of the provisions for the second expedition led by Martin Frobisher was produced on 26 March 1577, for 115 men and 18 months. These plans contain an extraordinarily detailed food procurement list: the quantity of each food, the cost of each item, and how the rations were to be allocated. The subject of this paper is a nutritional analysis of the rations on this list. It is assumed that the March list is simply an 18-month version of what was put in place for the eventual seven-month expedition.The individual foods for the expedition were grouped into four basic meal plans, rotated throughout the journey at four ‘meat days’ and three ‘fast days’ per week. Since the amount of each food allocated per person per day was indicated, the quantities of each were able to be converted into modern measures, based on foods thought to be near equivalents to those in Frobisher's time, and the caloric and nutrient intake calculated. The results show a fairly monotonous diet of about 4000 calories on fast days to 5000 calories on meat days. Except for a virtual absence of vitamin C, the diet seems nutritionally adequate over short runs. Inadequacies could occur quickly if some foodstuffs went bad, or if members of the crew were depleted of crucial nutrients, such as ascorbic acid, before the voyage began. On longer journeys this diet would have been inadequate, as it is doubtful if beer (29% of the calories) or butter and cheese (most of the vitamin A) could have lasted for more than six months. An examination of 18 Arctic voyages between Frobisher's first (1576) and that of James (1631–1632) demonstrates that they had similar foodstuffs on board, and that few suffered appreciable dietary problems unless they were gone for more than six months.


2019 ◽  
Vol 11 (1) ◽  
pp. 39-48
Author(s):  
Enggar Wijayanti ◽  
Ulfa Fitriani

Latar Belakang. Anemia merupakan salah satu permasalahan gizi yang banyak terjadi di negara berkembang. Faktor gizi yang turut berkontribusi terhadap kejadian anemia diantaranya adalah kurangnya asupan zat gizi yang memengaruhi pembentukan Hemoglobin (Hb) pada penderita anemia. Tujuan. Penelitian ini bertujuan untuk mengetahui gambaran konsumsi energi, protein, zat besi, asam folat, vitamin C, vitamin A, dan seng pada subjek penderita anemia dibandingkan dengan angka kecukupan gizi (AKG) yang diduga menjadi faktor penyebab anemia. Metode. Penelitian ini menggunakan desain penelitian cross-sectional dan merupakan bagian dari penelitian “Observasi Klinik Formula Jamu Anemia” yang dilakukan pada bulan Maret-Desember 2018. Jumlah subjek sebanyak 83 orang dengan rentang usia 16-49 tahun. Data konsumsi makanan dikumpulkan dengan wawancara menggunakan food recall 24 jam dan selanjutnya dianalisis dengan program Nutrisurvey. Hasil. Hasil penelitian menunjukkan bahwa sebagian besar subjek memiliki status gizi normal. Tingkat konsumsi zat besi, asam folat, dan seng subjek kurang dari AKG, konsumsi energi dalam kategori cukup, dan konsumsi protein, vitamin A serta vitamin C lebih dari AKG. Hasil uji bivariat chi-square menunjukkan tidak ada korelasi yang bermakna antara status anemia dengan konsumsi zat gizi (p>0,05). Kesimpulan. Wanita usia subur (WUS) yang menderita anemia rata-rata memiliki tingkat konsumsi zat besi, asam folat, dan seng kurang dari AKG


Author(s):  
Peter Atkins

Illustrated with remarkable new full-color images--indeed, one or more on every page--and written by one of the world's leading authorities on the subject, Reactions offers a compact, pain-free tour of the inner workings of chemistry. Reactions begins with the chemical formula almost everyone knows--the formula for water, H2O--a molecule with an "almost laughably simple chemical composition." But Atkins shows that water is also rather miraculous--it is the only substance whose solid form is less dense than its liquid (hence ice floats in water)--and incredibly central to many chemical reactions, as it is an excellent solvent, being able to dissolve gases and many solids. Moreover, Atkins tells us that water is actually chemically aggressive, and can react with and destroy the compounds dissolved in it, and he shows us what happens at the molecular level when water turns to ice--and when it melts. Moving beyond water, Atkins slowly builds up a toolkit of basic chemical processes, including precipitation (perhaps the simplest of all chemical reactions), combustion, reduction, corrosion, electrolysis, and catalysis. He then shows how these fundamental tools can be brought together in more complex processes such as photosynthesis, radical polymerization, vision, enzyme control, and synthesis. Peter Atkins is the world-renowned author of numerous best-selling chemistry textbooks for students. In this crystal-clear, attractively illustrated, and insightful volume, he provides a fantastic introductory tour--in just a few hundred colorful and lively pages - for anyone with a passing or serious interest in chemistry.


Antibiotics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 466
Author(s):  
Herbert Galler ◽  
Josefa Luxner ◽  
Christian Petternel ◽  
Franz F. Reinthaler ◽  
Juliana Habib ◽  
...  

In recent years, antibiotic-resistant bacteria with an impact on human health, such as extended spectrum β-lactamase (ESBL)-containing Enterobacteriaceae, methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE), have become more common in food. This is due to the use of antibiotics in animal husbandry, which leads to the promotion of antibiotic resistance and thus also makes food a source of such resistant bacteria. Most studies dealing with this issue usually focus on the animals or processed food products to examine the antibiotic resistant bacteria. This study investigated the intestine as another main habitat besides the skin for multiresistant bacteria. For this purpose, faeces samples were taken directly from the intestines of swine (n = 71) and broiler (n = 100) during the slaughter process and analysed. All samples were from animals fed in Austria and slaughtered in Austrian slaughterhouses for food production. The samples were examined for the presence of ESBL-producing Enterobacteriaceae, MRSA, MRCoNS and VRE. The resistance genes of the isolated bacteria were detected and sequenced by PCR. Phenotypic ESBL-producing Escherichia coli could be isolated in 10% of broiler casings (10 out of 100) and 43.6% of swine casings (31 out of 71). In line with previous studies, the results of this study showed that CTX-M-1 was the dominant ESBL produced by E. coli from swine (n = 25, 83.3%) and SHV-12 from broilers (n = 13, 81.3%). Overall, the frequency of positive samples with multidrug-resistant bacteria was lower than in most comparable studies focusing on meat products.


2021 ◽  
Vol 8 ◽  
pp. 2333794X2110217
Author(s):  
Indah K. Murni ◽  
Endy P. Prawirohartono ◽  
Rina Triasih

Background. Vitamin C, E, D, A, zinc are considered to be essential in preventing and treating of acute respiratory infections (ARI) including COVID-19. Methods. We reviewed published studies evaluating the potential roles of these vitamin and zinc for ARIs and COVID-19 using Medline database, medRxiv, and bibliographic references. Results. Vitamins C, D, and E did not reduce incidence of common cold in general, but vitamin C reduced by half in population with physical and environment stresses. Vitamins C and E shortened duration and reduced severity of common cold. A large-dose vitamin A had no effect on recovery from pneumonia. Zinc improved clinical deterioration and pneumonia duration in under five. The effect on preventing COVID-19 morbidity and related-death was lacking. Conclusions. Although the effects of vitamins and zinc on ARIs including COVID-19 were inconclusive, taking these for a short period during pandemic may be beneficial when there is risks of deficiency.


Author(s):  
Hanna Górska-Warsewicz ◽  
Krystyna Rejman ◽  
Joanna Kaczorowska ◽  
Wacław Laskowski

The aim of our study was to analyse vegetables, potatoes and their products as sources of energy and nutrients in the average diet in Poland. Representative data of the 2016 Household Budget Survey from 36,886 households were used. This is the largest study sample in Poland, so we generalized the conclusions to the whole population using the statement ‘average diet’. We analysed three main product groups: vegetables, vegetable products, and potatoes and potatoes products, dividing them into 14 subgroups (e.g., tomatoes, cabbage, carrots, other vegetables, and mushrooms). The percentages of energy, protein, carbohydrates, total fat, nine vitamins (thiamine, riboflavin, niacin, vitamin B6, folate, vitamin C, vitamin A, vitamin D, and vitamin E), seven minerals (calcium, phosphorus, sodium, potassium, iron, magnesium and zinc), and fibre from the analysed food subgroups are presented. Additionally, the influence of household characteristics on the supply of energy and nutrients from each subgroup of vegetables, potatoes, and their products was evaluated using cluster analysis. In the analysis, R programme and Kohonen neural networks were applied. Our study showed that vegetables, potatoes, and their products provide 7.3% of daily dietary energy supply. Vegetables contribute more than 20% of the supply of six nutrients: vitamin C (51.8%), potassium (32.5%), folate (31.0%), vitamin A (30.6%), vitamin B6 (27.8%), and magnesium (20.2%), as well as fibre (31.8%). Cluster analysis distinguished three clusters that differed in nutritional supply from vegetables, potatoes, and their products. Educational level, income measured by quintile groups, village size, socio-economic characteristics, urbanization degree, and land use were the most important factors determining differences between clusters.


2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Prince Oteng ◽  
John K. Otchere ◽  
Stephen Adusei ◽  
Richard Q. Mensah ◽  
Emmanuel Tei-Mensah

Tetrapleura tetraptera is widely cherished in African traditional homes because of its alleged therapeutic and nutritional properties. This present study aimed at determining the levels of vitamin A, C, E, and beta-carotene and trace element (Fe, Cu, Mn, Co, Se, and Zn) concentrations and their extractabilities in the pulp, seeds, and whole fruit (mixture of pulp and seeds) of T. tetraptera. The total trace element concentration of Fe, Cu, Co, Mn, and Zn and their extractabilities (%) were determined using flame atomic absorption spectrometer (FAAS), whereas UV-VIS spectrophotometer was used to determine selenium concentration. The trace element content (mg/kg) based on dry weight in the pulp, seeds, and whole fruit was Fe (162.00 ± 7.14, 115.00 ± 12.00, and 154.00 ± 25.20, respectively), Zn (31.60 ± 4.77, 43.40 ± 5.29, and 41.50 ± 8.97, respectively), Cu (16.10 ± 4.98, 11.90 ± 8.40, and 17.20 ± 14.50, respectively), Mn (55.30 ± 2.41, 156.00 ± 10.20, and 122.00 ± 5.29, respectively), Co (38.10 ± 6.40, 21.10 ± 7.15, and 44.00 ± 14.90, respectively), and Se (1.49 ± 0.17, 2.43 ± 0.28, and 2.97 ± 0.27 μg/g, respectively). The mineral extractabilities (%) in the pulp, seeds, and whole fruit of T. tetraptera were established to be in the order Co > Zn > Fe > Cu > Se > Mn. Also, the chromatographic method (HPLC) was used to evaluate vitamin E concentration, and vitamin C and concentration of beta-carotene were calculated from the obtained concentration of vitamin A using a conversion factor by the titrimetric method. From the results of vitamin analysis, a significant difference (p<0.05) was observed among the pulp, seeds, and whole fruit for vitamin C and E. However, no significant difference (p>0.05) was perceived among these plant parts for vitamin A and beta-carotene. This study has therefore revealed that the pulp, seeds, and whole fruit of T. tetraptera contain varying concentrations of vitamins and trace elements and has given many vital insights on which part of T. tetraptera to consume, as concentrations of these nutrients differ in the discrete parts of the fruit.


1992 ◽  
Vol 67 (1) ◽  
pp. 3-16 ◽  
Author(s):  
Harri Hemilä

The effect of vitamin C on the common cold has been the subject of several studies. These studies do not support a considerable decrease in the incidence of the common cold with supplemental vitamin C. However, vitamin C has consistently decreased the duration of cold episodes and the severity of symptoms. The benefits that have been observed in different studies show a large variation and, therefore, the clinical significance may not be clearly inferred from them. The biochemical explanation for the benefits may be based on the antioxidant property of vitamin C. In an infection, phagocytic leucocytes become activated and they produce oxidizing compounds which are released from the cell. By reacting with these oxidants, vitamin C may decrease the inflammatory effects caused by them. Scurvy, which is caused by a deficiency in vitamin C, is mostly attributed to the decreased synthesis of collagen. However, vitamin C also participates in several other reactions, such as the destruction of oxidizing substances. The common cold studies indicate that the amounts of vitamin C which safely protect from scurvy may still be too low to provide an efficient rate for other reactions, possibly antioxidant in nature, in infected people.


2016 ◽  
Vol 5 ◽  
Author(s):  
Seung Chik Jwa ◽  
Kohei Ogawa ◽  
Minatsu Kobayashi ◽  
Naho Morisaki ◽  
Haruhiko Sago ◽  
...  

AbstractMaternal vitamin intake during pregnancy is crucial for pregnancy outcomes and the child's subsequent health. However, there are few valid instruments for assessing vitamin intake that address the effects of nausea and vomiting during pregnancy (NVP). This study aimed to investigate the validity of a FFQ concerning vitamin intake during early and late pregnancy with and without NVP. The participants comprised 200 Japanese pregnant women who completed the FFQ and from whom blood samples were taken in early and late pregnancy. Energy-adjusted dietary vitamin intakes (vitamin C, folate, vitamin B6, vitamin B12, vitamin A, vitamin E and vitamin D) from FFQ were compared with their blood concentrations. A subgroup of women with NVP was investigated. In early pregnancy, significant correlations between FFQ and biomarkers were observed for vitamin C (r0·27), folate (r0·18) and vitamin D (r0·26) in women with NVP and for vitamin A (r0·18), vitamin B12(r0·24) and vitamin D (r0·23) in women without NVP. No significant correlations were observed in either group for vitamins B6or E. In late pregnancy, similar significant associations were observed for vitamin C (r0·27), folate (r0·22), vitamin B6(r0·18), vitamin B12(r0·27) and vitamin A (r0·15); coefficients were higher among women without NVP. Our study demonstrates that the FFQ is a useful tool for assessing intake of several important vitamins in early and late pregnancy regardless of NVP status.


2018 ◽  
Vol 1 (1) ◽  
pp. 18-25
Author(s):  
Diane Paparang ◽  
Nurpudji A. Taslim ◽  
Haerani Rasyid ◽  
A. Yasmin Syauki

Pendahuluan Proses penyembuhan luka post amputasi dan luka bakar dengan luas 25% dan kedalaman derajat III serta hipoalbuminemia sedang (albumin 2,6g/dL) dan status gizi kurang memerlukan terapi gizi spesifik tinggi protein. Laporan Kasus Tn.I, laki-laki, 28 tahun dikonsul oleh bagian bedah dengan luka post amputasi dan  luka bakar listrik derajat III luas 25%. Keluhan utama asupan makan kurang sejak 16 hari terakhir karena nafsu makan kurang akibat nyeri pada luka post amputasi dan luka bakar. Ada nyeri ulu hati dan demam menggigil. Asupan 24 jam 1000kkal. Pasien didiagnosis dengan status gizi kurang (LLA=80,7%), status metabolik anemia normositik normokrom (Hb 9.7 g/dl), deplesi sedang sistem imun (TLC 940/µL), hipoalbuminemia (albumin 2,6g/dL) dan status gastrointestinal fungsional. Terapi nutrisi dengan energi 2500 kkal, protein 2 gr/kgBBI/hari (23%), karbohidrat 57% dan lemak 20 %, melalui oral berupa makanan biasa 1250 kkal, ONS glutamine 2.5g/hari, suplementasi 6 butir putih telur (protein 31,5g/hari), vitamin C 1g/24jam, vitamin A 6.000IU/12jam, vitamin B1-100mg, vitamin B6-200mg, vitamin B12-200mg, Zinc 50mg/24jam, selenium 55µg, Curcuma 400mg/8jam dan ekstrak ikan gabus 2 kapsul/8 jam. Setelah perawatan 30 hari, terjadi perbaikan dalam penyembuhan luka, peningkatan LLA menjadi 23,5cm, peningkatan hemoglobin 9.3g/dl, peningkatan sistem imun (TLC 2064/µL), peningkatan albumin 3.9g/dL. Kesimpulan Terapi nutrisi spesifik dengan protein 2 gr/kgBBI dapat meningkatkan kadar albumin dan mempercepat penyembuhan luka pada pasien luka bakar.


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