The effects of yeast inoculation rate and acclimatization to juice on icewine fermentation /

Icewine is an intensely sweet, unique dessert wine fennented from the juice of grapes that have frozen naturally on the vine. The juice pressed from the frozen grapes is highly concentrated, ranging from a minimum of 35° Brix to approximately 42° Brix. Often Icewine fennentations are sluggish, taking months to reach the desired ethanol level, and sometimes become stuck. In 6 addition, Icewines have high levels of volatile acidity. At present, there is no routine method of yeast inoculation for fennenting Icewine. This project investigated two yeast inoculum levels, 0.2 gIL and 0.5 gIL. The fennentation kinetics of inoculating these yeast levels directly into the sterile Icewine juice or conditioning the cells to the high sugar levels using a step wise acclimatization procedure were also compared. The effect of adding GO-FERM, a yeast nutrient, was also assessed. In the sterile fennentations, yeast inoculated at 0.2 gIL stopped fennenting before the required ethanol level was achieved, producing only 7.8% (v/v) and 8.1 % (v/v) ethanol for the direct and conditioned inoculations, respectively. At 0.5 gIL, the stepwise conditioned cells fennented the most sugar, producing 12.2% (v/v) ethanol, whereas the direct inoculum produced 10.5% (v/v) ethanol. The addition of the yeast nutrient GO-FERM increased the rate of biomass accumulation, but reduced the ethanol concentration in wines fennented at 0.5 gIL. There was no significant difference in acetic acid concentration in the final wines across all treatments. Fennentations using unfiltered Icewine juice at the 0.5 gIL inoculum level were also compared to see if the effects of yeast acclimatization and micronutrient addition had the same impact on fennentation kinetics and yeast metabolite production as observed in the sterile-filtered juice fennentations. In addition, a full descriptive analysis of the finished wines was carried out to further assess the impact of yeast inoculation method on Icewine sensory quality. At 0.5 gIL, the stepwise conditioned cells fennented the most sugar, producing 11.5% (v/v) ethanol, whereas the direct inoculum produced 10.0% (v/v) ethanol. The addition of the yeast nutrient GO-FERM increased the peak viable cell numbers, but reduced the ethanol concentration in wines fennented at 0.5 gIL. There was a significant difference 7 in acetic acid concentration in the final wines across all treatments and all treatments affected the sensory profiles of the final wines. Wines produced by direct inoculation were described by grape and raisin aromas and butter flavour. The addition of GO-FERM to the direct inoculation treatment shifted the aroma/flavour profiles to more orange flavour and aroma, and a sweet taste profile. StepWise acclimatizing the cells resulted in wines described more by peach and terpene aroma. The addition of GO-FERM shifted the profile to pineapple and alcohol aromas as well as alcohol flavour. Overall, these results indicate that the addition of GO-FERM and yeast acclimatization shortened the length of fermentation and impacted the sensory profiles of the resultant wines.

Pollen and grain size records in abyssal sediments of the northwest Pacific Ocean as proxies of Plio-Pleistocene climate change /

A distinctive period of global change occurred during the PUocene between the warm Miocene and subsequent Quaternary cooling. Samples from Ocean Drilling Project Site 11 79 (-5586 mbsl, 41°4'N, 159°57'E), Site 881 (-5765 mbsl, 47°6.133'N, 161°29.490'E) and Site 882 (-3255 mbsl, 50°22'N, 167°36'E) were studied to determine the magnitude and composition ofterrigenous flux to the western mid-latitude North Pacific and its relation to climate change in East Asia since the mid-Pliocene. Dust-sized particles (including pollen), sourced from the arid regions and loess plateaus in East Asia are entrained by prevailing westerly winds and transported to the midlatitude northwest North Pacific Ocean. This is recorded by peaks in the total concentration of pollen and spores, as well as the mean grain size of allochthonous and autochthonous silicate material in abyssal marine sediments. Aridification of the Asian interior due to the phased uplift of the Himalayan-Tibetan Plateau created the modem East Asian Monsoon system dominated by a strengthening of the winter monsoon. The winter monsoon is further enhanced during glacials due to the expansion of desert and steppe environments at the expense ofwoodlands and forests recorded by the composition of palynological assemblages. The late Pliocene-Pleistocene glacials at ODP Sites 1 179, 881, and 882 are characterized by increases in grain size, magnetic susceptibility, pollen and spore concentrations around 3.5-3.3, 2.6-2.4, 1.7-1.6, and 0.9-0.7 Ma (ages based on magnetostratigraphic and biostratigraphic datums). The peaks during these times are relatively rich in pollen taxa derived primarily from steppe and boreal vegetation zones, recording cool, dry climates. The overall size increase of sediment and abundance of terrestrial palynomorphs record enhanced wind strength. The increase in magnitude of pollen and spore concentrations as well as grain size record global cooling and Northern Hemisphere glaciation. The peaks in grain size as well as pollen and spore abundance in marine sediments correlate with the mean grain size of loess in East Asia, consistent with the deflation of unarmoured surfaces during glacials. The transport of limiting nutrients to marine environments enhanced sea surface productivity and increased the rate of sediment accumulation.

Residence of N.T. Fitch, Esq. - Vignette

A vignette of the residence of N.T. Fitch, Esq., Deputy Clerk of the Crown, Welland.

National Intelligencer, 10 November 1812 (vol. 13, no. 1895) - Newspaper

The Intelligencer was an American newspaper that was established in Washington by Samuel Harrison Smith, a young Jeffersonian-Republican from Philadelphia. The paper was a supporter of the Jefferson and Madison administrations until 1810 when it was sold to Joseph Gales Jr. from North Carolina. In 1812 William Seaton joined Gales as a publishing partner. The paper made significant contributions to the nation and wielded considerable influence in political circles during its publication

Secret Orders - 16 June, 1918

A set of instructions marked "Secret" for Lt. Col. F.C. McCordick, Commanding 15th Garrison Battalion Kings Own Yorkshire Light Infantry. The handwritten document is dated 16 June, 1918 and is Copy No.1. The document describes the role of the Battalion in the event of an enemy attack.

London Gazette - October 6 & November 27, 1812

Two "extraordinary" issues of the London Gazette containing letters written by Isaac Brock, R.H. [Roger Hale] Sheaffe,George Prevost and Edward Baynes, dated from August-October 1812. The first issue is numbered 16653, October 6, 1812, pp. 2011-2014, and the second issue is numbered 16672, November 27, 1812, pp. 2363-2365. The gazettes include Brock's account of the British victory at Detroit in August, 1812, the terms of the Americans' surrender to the British under General Hull at Detroit, and Brock's proclamation to the residents of Detroit after the defeat. Also included is an account of the battle at Queenston Heights in October, 1812, in which Isaac Brock was killed, written by R.H. Sheaffe (Major General) and Edward Baynes (Adjutant-General)

HOEK UNIT C (Z) B3

Light brown sediment with clasts ranging from small to medium in size. The clast shape ranges from sub-angular to rounded. Lineations and edge-to-edge grain crushing can mainly be seen in this sample. There are also a few examples of grain stacking and crushed grains.

AB1-2

Brown sediment with clasts ranging from small to large in size. Clast shape ranges from sub-angular to sub-rounded. Many grains are fractured throughout the sample. Some lineations can be seen. The sample contains well dispersed clasts.

AB-2

Brown sediment with clasts ranging from small to large in size. Clast shape ranges from sub-angular to sub-rounded. The clasts are generally well dispersed, with a few areas of closer aggregates. Lineations are common throughout the sample. A few rotation structures and a few areas of edge-to-edge grain crushing can also be seen. Comet structures can also be seen in very minor amounts.

Certificate for Six Shares of Capital Stock in Gove Motor Car Company, Detroit, Michigcan

Certificate for 6 shares of common capital stock in Gove Motor Car Company, Detroit, Michigan to Hamilton K. Woodruff, June 13, 1921.

Report from the annual meeting of the shareholders held on June 1, 1886 regarding shares

Report from the annual meeting of the shareholders held on June 1, 1886 regarding shares (copy of 1 handwritten page). The board of directors also met and new directors were named. This is signed by Louis N. Hayne, secretary, June 7, 1886.