scholarly journals The Effect of Plant Additives on the Stability of Polyphenols in Cloudy and Clarified Juices from Black Chokeberry (Aronia melanocarpa)

Antioxidants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 801 ◽  
Author(s):  
Andrzej Sidor ◽  
Agnieszka Drożdżyńska ◽  
Anna Brzozowska ◽  
Artur Szwengiel ◽  
Anna Gramza-Michałowska
Keyword(s):  
Phenolic Compounds ◽  
Degradation Process ◽  
Biologically Active ◽  
Common View ◽  
Beneficial Effects ◽  
Aronia Melanocarpa ◽  
Other Substances ◽  
Black Chokeberry ◽  
The Common ◽  
The Stability

Black chokeberry (Aronia melanocarpa) is a fruit with increasing popularity in consumption and processing. Recent research has strengthened the position of chokeberry as a source of phenolic compounds, antioxidants with high pro-health values, therefore it is important to investigate other substances protecting biologically active compounds during juice processing. This study was an attempt to reduce the loss of polyphenol in cloudy and clarified chokeberry juice by adding aqueous cinnamon and clove extracts. The results showed that the clarification of juices did not cause significant changes in the concentration of polyphenols. However, the addition of plant extracts prior to pasteurisation process influenced the content of phenolic compounds in the chokeberry juices. The main change in the composition of the chokeberry juices observed during storage was a result of the degradation process of anthocyanins. The research showed that, despite the common view about the beneficial effects of polyphenols and other compounds exhibiting mutual antioxidative potential, it is very difficult to inhibit the degradation process.

An experiment of determining the geopotential difference using two hydrogen atomic clocks

2020 ◽  
Author(s):  
Kuangchao Wu ◽  
Wen-Bin Shen ◽  
Ziyu Shen ◽  
Chenghui Cai ◽  
Xiao Sun ◽  
...  
Keyword(s):  
Geographic Distance ◽  
Relativity Theory ◽  
Atomic Clocks ◽  
Common View ◽  
Time Frequency ◽  
The Common ◽  
Zero Baseline ◽  
Clock Comparison ◽  
The Stability ◽  
Geopotential Determination

<p>According to general relativity theory, one may determine the geopotential difference between two arbitrary stations by comparing there-located clocks’ running rates. In this study, we provide experimental results of the geopotential determination based on the time elapse comparison between two hydrogen atomic clocks, one fixed clock  and one portable clock , using the common view satellite time transfer (CVSTT) technique. We compared the portable clock  located at Jiugongshan Time Frequency Station (JTFS) with the fixed clock  located at Luojiashan Time Frequency Station (LTFS) for 30 days. The two stations are separated by a geographic distance of around 240 km with height difference around 1230 m. Then the clock  was transported (without stopping its running status) to LTFS and compared with clock  for zero-baseline calibration for 15 days. The clock-comparison-determined geopotential difference between JTFS and LTFS is determined. Results show that the clock-comparison-determined result deviates from the EGM20080-determined result by about 2322±1609 m<sup>2</sup>s<sup>-2</sup>, equivalent to 237±164  m in height, in consistence with the stability of the hydrogen atomic clocks applied in the experiments (at the level of 10<sup>-15</sup>/day).</p><p>This study is supported by NSFCs (grant Nos. 41721003, 41631072, 41874023, 41804012, 41429401, 41574007) and Natural Science Foundation of Hubei Province of China (grant No. 2019CFB611).</p>

Content of Phenolic Compounds and Free Polyamines in Black Chokeberry (Aronia melanocarpa) after Application of Polyamine Biosynthesis Regulators

2006 ◽  
Vol 54 (10) ◽  
pp. 3625-3628 ◽  
Author(s):  
Jozef Hudec ◽  
Dušan Bakoš ◽  
Dušan Mravec ◽  
L'ubomír Kobida ◽  
Maria Burdová ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Polyamine Biosynthesis ◽  
Aronia Melanocarpa ◽  
Free Polyamines ◽  
Black Chokeberry

scholarly journals Influence of Different Sweeteners on the Stability of Anthocyanins from Cornelian Cherry Juice

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1266
Author(s):  
Bianca Moldovan ◽  
Luminita David
Keyword(s):  
Deleterious Effect ◽  
Degradation Process ◽  
Storage Conditions ◽  
Biologically Active ◽  
Cornelian Cherry ◽  
Accelerated Degradation ◽  
Pigment Stability ◽  
Cherry Juice ◽  
The Stability ◽  
And Storage

Cornelian cherries are red fruits which can be considered as a valuable dietary source of antioxidant biologically active compounds, especially anthocyanins. The purpose of the present study was to investigate the anthocyanins degradation process in Cornelian cherry juice supplemented with different sweeteners. Four formulations of Cornelian cherry juice were prepared using different sugars (sucrose, fructose) or artificial sweeteners (aspartame and acesulfame potassium). The obtained juices were stored at three distinct temperatures (2 °C, 25 °C, and 75 °C) in order to evaluate the effects of the sweetener and storage conditions on the pigment stability. The rate constants (k) and the half time values (t1/2) of the degradation processes were determined. The highest stability was observed for the anthocyanins from the unsweetened juice stored at 2 °C (k = 0.5·10−3 h−1), while the most accelerated degradation was registered for the fructose sweetened juice stored at 75 °C (k = 91.65·10−3 h−1). The presence of the different sweeteners in the Cornelian cherry juice affects their pigment stability during storage. The highest change in the retention of anthocyanins was determined by the presence of fructose, while acesulfame potassium had the less deleterious effect.

scholarly journals The Effect of Plant Additives on the Stability of Polyphenols in Dried Black Chokeberry (Aronia melanocarpa) Fruit

Foods ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 44
Author(s):  
Andrzej Sidor ◽  
Agnieszka Drożdżyńska ◽  
Anna Brzozowska ◽  
Anna Gramza-Michałowska
Keyword(s):  
Freeze Drying ◽  
Storage Period ◽  
Test Results ◽  
Bioactive Components ◽  
Polyphenol Content ◽  
Aronia Melanocarpa ◽  
Black Chokeberry ◽  
The Stability ◽  
High Level ◽  
Source Of Information

Chokeberry fruit exhibits a high level of pro-health potential, associated with a significant amount of polyphenol content and antioxidant activity. The fruit is easily perishable and therefore needs to be processed in short order to ensure its availability throughout the year. For this purpose, the fruit is dried, which has an impact on the preservation of bioactive components such as polyphenols. In the study, chokeberry fruit was influenced by a suspension of spices, including clove and cinnamon, and subsequently dried using the freeze-drying, convection, and microwave radiation methods. Freeze-drying was concluded to be the most desirable method of drying, which preserves the largest amount of polyphenols while soaking fruit in a suspension of cinnamon or cloves accelerated the loss of anthocyanins during the storage period. The obtained test results may constitute a valuable source of information for manufacturers in designing new products with increased pro-health potential, whose properties result from the high content of polyphenols and other plant additives.

scholarly journals Craft Beers made with Addition of Umbrian Legumes: Healthy and Nutritional Characterization

2018 ◽  
Vol 13 (9) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Stefano Luneia ◽  
Riccardo Zannoli ◽  
Marco Farchioni ◽  
Michele Sensidoni ◽  
Roberto Luneia
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Beneficial Effects ◽  
Mineral Profile ◽  
Prevention Of Cancer ◽  
Craft Beers ◽  
Active Substances

Legumes are very rich in phytochemicals and in particular isoflavones. In this work we have developed techniques to get the brewing craft beers made with the addition of Umbrian legumes (chickling and lentils), to verify if the healthy and nutritional characteristic of these product change. The results obtained show that probably during the processes of cooking and fermentation a transfer of the biologically active substances from the “special ingredients” to the finished beer takes place. From healthy and nutritional characterization of the beers important results emerged: an interesting mineral profile and a large content of molecules with antioxidant activity like phenolic compounds (350–630 mg/L). It should also be noted that within the group of phenolic compounds present in these beers were also found interesting amount of isoflavones in particular genistin and daidzin, which in addition to being powerful antioxidants have other beneficial effects and therefore can act in the prevention of cancer, inflammatory, cardiovascular, postmenopausal, cognitive, and immune diseases.

Articulatory Generalization in Two Word-Medial, Ambisyllabic Contexts

1988 ◽  
Vol 19 (3) ◽  
pp. 251-258 ◽  
Author(s):  
Virginia I. Wolfe ◽  
Suzanne D. Blocker ◽  
Norma J. Prater
Keyword(s):  
Common View ◽  
Perceptual Salience ◽  
The Common ◽  
Unitary Concept ◽  
Over Time

Articulatory generalization of velar cognates /k/, /g/ in two phonologically disordered children was studied over time as a function of sequential word-morpheme position training. Although patterns of contextual acquisition differed, correct responses to the word-medial, inflected context (e.g., "picking," "hugging") occurred earlier and exceeded those to the word-medial, noninflected context (e.g., "bacon," "wagon"). This finding indicates that the common view of the word-medial position as a unitary concept is an oversimplification. Possible explanations for superior generalization to the word-medial, inflected position are discussed in terms of coarticulation, perceptual salience, and the representational integrity of the word.

Current issues in aesthetics and beyond: Revisiting lookism

2020 ◽  
Vol 10 (1-2) ◽  
pp. 59-68
Author(s):  
Peter Takáč
Keyword(s):  
Plastic Surgery ◽  
Social Impact ◽  
Human Beings ◽  
Common View ◽  
Aesthetic Medicine ◽  
Unequal Treatment ◽  
Self Confidence ◽  
Public Status ◽  
The Social ◽  
The Common

AbstractLookism is a term used to describe discrimination based on the physical appearance of a person. We suppose that the social impact of lookism is a philosophical issue, because, from this perspective, attractive people have an advantage over others. The first line of our argumentation involves the issue of lookism as a global ethical and aesthetical phenomenon. A person’s attractiveness has a significant impact on the social and public status of this individual. The common view in society is that it is good to be more attractive and healthier. This concept generates several ethical questions about human aesthetical identity, health, authenticity, and integrity in society. It seems that this unequal treatment causes discrimination, diminishes self-confidence, and lowers the chance of a job or social enforcement for many human beings. Currently, aesthetic improvements are being made through plastic surgery. There is no place on the human body that we cannot improve with plastic surgery or aesthetic medicine. We should not forget that it may result in the problem of elitism, in dividing people into primary and secondary categories. The second line of our argumentation involves a particular case of lookism: Melanie Gaydos. A woman that is considered to be a model with a unique look.

Catalytic Synthesis of Cyclic Guanidines via Hydrogen Atom Transfer and Radical-Polar Crossover

2020 ◽  
Author(s):  
Shunya Ohuchi ◽  
Hiroki Koyama ◽  
Hiroki Shigehisa
Keyword(s):  
Hydrogen Atom ◽  
Functional Group ◽  
Hydrogen Atom Transfer ◽  
Catalytic Synthesis ◽  
Membered Ring ◽  
Biologically Active ◽  
Atom Transfer ◽  
Powerful Method ◽  
Protective Groups ◽  
The Common

A catalytic synthesis of cyclic guanidines, which are found in many biologically active compounds and natu-ral products, was developed, wherein transition-metal hydrogen atom transfer and radical-polar crossover were employed. This mild and functional-group tolerant process enabled the cyclization of alkenyl guanidines bearing common protective groups, such as Cbz and Boc. This powerful method not only provided the common 5- and 6-membered rings but also an unusual 7-membered ring. The derivatization of the products afforded various heterocycles. We also investigated the se-lective cyclization of mono-protected or hetero-protected (TFA and Boc) alkenyl guanidines and their further derivatiza-tions.

PERSOALAN KEHIDUPAN KONTEMPORER: MENGGAGAS KAJIAN SACHEDINA TENTANG THEOLOGI PLURALISME

EMPIRISMA ◽  
2017 ◽  
Vol 26 (1) ◽  
Author(s):  
Limas Dodi
Keyword(s):  
Religious Pluralism ◽  
Main Argument ◽  
Religious Groups ◽  
Common View ◽  
The Public ◽  
The People ◽  
Muslim Majority ◽  
The Common ◽  
The Relationship ◽  
Religious Differences

According to Abdulaziz Sachedina, the main argument of religious pluralism in the Qur’an based on the relationship between private belief (personal) and public projection of Islam in society. By regarding to private faith, the Qur’an being noninterventionist (for example, all forms of human authority should not be disturb the inner beliefs of individuals). While the public projection of faith, the Qur’an attitude based on the principle of coexistence. There is the willingness of the dominant race provide the freedom for people of other faiths with their own rules. Rules could shape how to run their affairs and to live side by side with the Muslims. Thus, based on the principle that the people of Indonesia are Muslim majority, it should be a mirror of a societie’s recognizion, respects and execution of religious pluralism. Abdul Aziz Sachedina called for Muslims to rediscover the moral concerns of public Islam in peace. The call for peace seemed to indicate that the existence of increasingly weakened in the religious sense of the Muslims and hence need to be reaffi rmed. Sachedina also like to emphasize that the position of peace in Islam is parallel with a variety of other doctrines, such as: prayer, fasting, pilgrimage and so on. Sachedina also tried to show the argument that the common view among religious groups is only one religion and traditions of other false and worthless. “Antipluralist” argument comes amid the reality of human religious differences. Keywords: Theology, Pluralism, Abdulaziz Sachedina

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